{"id":110735,"date":"2021-08-31T17:15:01","date_gmt":"2021-08-31T09:15:01","guid":{"rendered":"https:\/\/www.alpapowder.com\/110735\/"},"modified":"2021-08-31T17:18:45","modified_gmt":"2021-08-31T09:18:45","slug":"phuong-phap-dieu-che-alumin-hinh-cau","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/110735\/","title":{"rendered":"Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf alumin h\u00ecnh c\u1ea7u"},"content":{"rendered":"<p>Aluminium h\u00ecnh c\u1ea7u c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 alumin c\u00e1t, alumin alpha. Trong m\u1ea1ng tinh th\u1ec3 c\u1ee7a alumin lo\u1ea1i \u03b1, c\u00e1c ion oxy \u0111\u01b0\u1ee3c x\u1ebfp d\u00e0y \u0111\u1eb7c trong c\u00e1c h\u00ecnh l\u1ee5c gi\u00e1c, v\u00e0 AI<sup>3+<\/sup> ph\u00e2n b\u1ed1 \u0111\u1ed1i x\u1ee9ng trong t\u00e2m ph\u1ed1i tr\u00ed b\u00e1t di\u1ec7n \u0111\u01b0\u1ee3c bao quanh b\u1edfi c\u00e1c ion oxy. N\u0103ng l\u01b0\u1ee3ng m\u1ea1ng tinh th\u1ec3 l\u1edbn n\u00ean nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y v\u00e0 nhi\u1ec7t \u0111\u1ed9 s\u00f4i cao. N\u00f3 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh ch\u1ed1ng \u0103n m\u00f2n, ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, c\u01b0\u1eddng \u0111\u1ed9 cao, c\u00e1ch nhi\u1ec7t t\u1ed1t, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn, \u0111\u1ed9 c\u1ee9ng cao v\u00e0 ch\u1ed1ng oxy h\u00f3a.<\/p>\n<h4>Quy tr\u00ecnh chu\u1ea9n b\u1ecb alumin h\u00ecnh c\u1ea7u<\/h4>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p phay bi (phay bi n\u0103ng l\u01b0\u1ee3ng cao)<\/strong><\/li>\n<\/ul>\n<p>Nghi\u1ec1n bi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 chu\u1ea9n b\u1ecb b\u1ed9t alumin si\u00eau m\u1ecbn. B\u1ea3n th\u00e2n m\u00e1y nghi\u1ec1n bi l\u00e0 m\u1ed9t h\u00ecnh tr\u1ee5 n\u1eb1m ngang c\u00f3 g\u1eafn s\u1eb5n ph\u01b0\u01a1ng ti\u1ec7n nghi\u1ec1n bi th\u00e9p, \u0111\u1ec3 sau khi v\u1eadt li\u1ec7u \u0111i v\u00e0o xi lanh, l\u1ef1c t\u00e1c \u0111\u1ed9ng sinh ra khi va ch\u1ea1m v\u1edbi bi th\u00e9p s\u1ebd \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 nghi\u1ec1n. Th\u00eam ch\u1ea5t tr\u1ee3 nghi\u1ec1n trong qu\u00e1 tr\u00ecnh nghi\u1ec1n bi c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a k\u00edch th\u01b0\u1edbc h\u1ea1t b\u1ed9t.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-110683 size-full aligncenter\" src=\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/nano-silica-1-1.jpg\" alt=\"\" width=\"1050\" height=\"410\" srcset=\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/nano-silica-1-1.jpg 1050w, https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/nano-silica-1-1-300x117.jpg 300w, https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/nano-silica-1-1-1024x400.jpg 1024w, https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/nano-silica-1-1-768x300.jpg 768w\" sizes=\"(max-width: 1050px) 100vw, 1050px\" \/><\/p>\n<p>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh \u0111i\u1ec1u ch\u1ebf b\u1ed9t alumin si\u00eau m\u1ecbn b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n bi n\u0103ng l\u01b0\u1ee3ng cao l\u00e0 th\u1eddi gian nghi\u1ec1n bi v\u00e0 t\u1ed1c \u0111\u1ed9 nghi\u1ec1n bi. \u01afu \u0111i\u1ec3m l\u00e0 v\u1eadn h\u00e0nh \u0111\u01a1n gi\u1ea3n, chi ph\u00ed th\u1ea5p v\u00e0 s\u1ea3n l\u01b0\u1ee3ng cao. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a s\u1ea3n ph\u1ea9m kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, k\u00edch th\u01b0\u1edbc h\u1ea1t t\u1ed1i thi\u1ec3u b\u1ecb h\u1ea1n ch\u1ebf v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc, kh\u00f3 thu \u0111\u01b0\u1ee3c c\u00e1c h\u1ea1t h\u00ecnh c\u1ea7u.<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p sol-gel m\u1ea1ng polyme<\/strong><\/li>\n<\/ul>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 b\u1ed9t alumin pha ch\u1ebf c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 \u0111\u1ed9 c\u1ea7u r\u1ea5t k\u00e9m.<\/p>\n<ul>\n<li><strong>Th\u1ee7y ph\u00e2n alkoxit<\/strong><\/li>\n<\/ul>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a b\u1ed9t \u0111\u00e3 chu\u1ea9n b\u1ecb nh\u1ecf. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 gi\u00e1 th\u00e0nh qu\u00e1 cao, \u0111\u1ed9 c\u1ea7u k\u00e9m.<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p m\u1eabu<\/strong><\/li>\n<\/ul>\n<p>Ph\u01b0\u01a1ng ph\u00e1p ti\u00eau b\u1ea3n s\u1eed d\u1ee5ng nguy\u00ean li\u1ec7u th\u00f4 h\u00ecnh c\u1ea7u l\u00e0m thu\u1ed1c th\u1eed \u0111\u1ec3 ki\u1ec3m so\u00e1t h\u00ecnh th\u00e1i trong quy tr\u00ecnh. S\u1ea3n ph\u1ea9m th\u01b0\u1eddng r\u1ed7ng ho\u1eb7c c\u00f3 c\u1ea5u tr\u00fac l\u00f5i &#8211; v\u1ecf.<\/p>\n<p>Qu\u00e1 tr\u00ecnh ch\u00ednh l\u00e0 s\u1eed d\u1ee5ng c\u00e1c vi c\u1ea7u polystyrene l\u00e0m khu\u00f4n m\u1eabu, ph\u1ee7 c\u00e1c h\u1ea1t nano alumina c\u00f3 ch\u1ee9c n\u0103ng axit cacbonic, v\u00e0 sau \u0111\u00f3 r\u1eeda b\u1eb1ng toluen \u0111\u1ec3 chu\u1ea9n b\u1ecb c\u00e1c qu\u1ea3 c\u1ea7u alumin r\u1ed7ng.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 m\u1ed9t c\u00e1ch t\u1ed1t \u0111\u1ec3 chu\u1ea9n b\u1ecb c\u00e1c qu\u1ea3 c\u1ea7u r\u1ed7ng. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 y\u00eau c\u1ea7u cao \u0111\u1ed1i v\u1edbi t\u00e1c nh\u00e2n ti\u00eau b\u1ea3n, nhi\u1ec1u b\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh chu\u1ea9n b\u1ecb v\u00e0 thao t\u00e1c kh\u00f3 kh\u0103n.<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n h\u1ee7y sol kh\u00ed<\/strong><\/li>\n<\/ul>\n<p>S\u1ef1 ph\u00e2n h\u1ee7y b\u1eb1ng sol kh\u00ed th\u01b0\u1eddng l\u1ea5y nh\u00f4m alkoxit l\u00e0m nguy\u00ean li\u1ec7u th\u00f4, s\u1eed d\u1ee5ng c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a nh\u00f4m alkoxit \u0111\u1ec3 d\u1ec5 b\u1ecb th\u1ee7y ph\u00e2n v\u00e0 nhi\u1ec7t ph\u00e2n \u1edf nhi\u1ec7t \u0111\u1ed9 cao, v\u00e0 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd c\u1ee7a s\u1ef1 thay \u0111\u1ed5i pha \u0111\u1ec3 l\u00e0m b\u1ed1c h\u01a1i c\u00e1c alkoxit nh\u00f4m, sau \u0111\u00f3 ti\u1ebfp x\u00fac v\u1edbi h\u01a1i n\u01b0\u1edbc \u0111\u1ec3 th\u1ee7y ph\u00e2n v\u00e0 nguy\u00ean t\u1eed h\u00f3a . Sau khi s\u1ea5y kh\u00f4 \u1edf nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c nhi\u1ec7t ph\u00e2n tr\u1ef1c ti\u1ebfp \u1edf nhi\u1ec7t \u0111\u1ed9 cao, qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a pha kh\u00ed-l\u1ecfng-r\u1eafn ho\u1eb7c kh\u00ed-r\u1eafn \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, v\u00e0 cu\u1ed1i c\u00f9ng b\u1ed9t nh\u00f4m h\u00ecnh c\u1ea7u \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh ph\u00e2n h\u1ee7y n\u01b0\u1edbc m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam ki\u1ec1m, \u0111i\u1ec1u ki\u1ec7n ph\u1ea3n \u1ee9ng nh\u1eb9 v\u00e0 v\u1eadn h\u00e0nh \u0111\u01a1n gi\u1ea3n. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 gi\u00e1 th\u00e0nh cao.<\/p>\n<ul>\n<li><strong>Th\u1ea3 b\u00f3ng<\/strong><\/li>\n<\/ul>\n<p>Ph\u01b0\u01a1ng ph\u00e1p th\u1ea3 bi l\u00e0 th\u1ea3 sol alumina v\u00e0o l\u1edbp d\u1ea7u (th\u01b0\u1eddng l\u00e0 parafin, d\u1ea7u kho\u00e1ng, v.v.), v\u00e0 t\u1ea1o th\u00e0nh c\u00e1c h\u1ea1t sol h\u00ecnh c\u1ea7u b\u1eb1ng t\u00e1c d\u1ee5ng c\u1ee7a s\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t, sau \u0111\u00f3 c\u00e1c h\u1ea1t sol \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh trong dung d\u1ecbch amoniac, v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 c\u00e1c h\u1ea1t gel M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p l\u00e0m kh\u00f4 v\u00e0 thi\u00eau k\u1ebft \u0111\u1ec3 t\u1ea1o th\u00e0nh alumin h\u00ecnh c\u1ea7u.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 c\u00f4ng ngh\u1ec7 nh\u0169 t\u01b0\u01a1ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho giai \u0111o\u1ea1n gi\u00e0 h\u00f3a c\u1ee7a sol, v\u00e0 gi\u1eef \u0111\u01b0\u1ee3c nguy\u00ean v\u1eb9n pha d\u1ea7u, lo\u1ea1i b\u1ecf nhu c\u1ea7u t\u00e1ch b\u1ed9t v\u00e0 d\u1ea7u th\u1eed. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf alumin h\u00ecnh c\u1ea7u v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t l\u1edbn h\u01a1n, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu cho ch\u1ea5t h\u1ea5p ph\u1ee5 ho\u1eb7c ch\u1ea5t h\u1ed7 tr\u1ee3 x\u00fac t\u00e1c.<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p plasma c\u1ea3m \u1ee9ng t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn<\/strong><\/li>\n<\/ul>\n<p>C\u00e1c h\u1ea1t alumin c\u00f3 h\u00ecnh d\u1ea1ng b\u1ea5t th\u01b0\u1eddng \u0111\u01b0\u1ee3c kh\u00ed mang phun v\u00e0o ng\u1ecdn \u0111u\u1ed1c plasma th\u00f4ng qua m\u1ed9t s\u00fang c\u1ea5p li\u1ec7u, v\u00e0 nhanh ch\u00f3ng \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng v\u00e0 n\u00f3ng ch\u1ea3y. C\u00e1c h\u1ea1t n\u00f3ng ch\u1ea3y t\u1ea1o th\u00e0nh c\u00e1c gi\u1ecdt h\u00ecnh c\u1ea7u cao d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a s\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t, trong th\u1eddi gian r\u1ea5t ng\u1eafn B\u00ean trong \u0111\u00f4ng \u0111\u1eb7c nhanh ch\u00f3ng, t\u1ea1o th\u00e0nh c\u00e1c h\u1ea1t h\u00ecnh c\u1ea7u.<\/p>\n<ul>\n<li><strong>Ng\u1ecdn l\u1eeda tan ch\u1ea3y<\/strong><\/li>\n<\/ul>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u1ea5u ch\u1ea3y b\u1eb1ng ng\u1ecdn l\u1eeda l\u00e0 phun tr\u1ef1c ti\u1ebfp b\u1ed9t alumin c\u00f3 h\u00ecnh d\u1ea1ng b\u1ea5t th\u01b0\u1eddng v\u00e0o ng\u1ecdn l\u1eeda, \u0111\u1ec3 b\u1ed9t alumin n\u00f3ng ch\u1ea3y th\u00e0nh m\u1ed9t qu\u1ea3 b\u00f3ng trong ng\u1ecdn l\u1eeda.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 quy tr\u00ecnh \u0111\u01a1n gi\u1ea3n, ki\u1ec3m so\u00e1t chi ph\u00ed thu\u1eadn l\u1ee3i h\u01a1n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p phun ng\u1ecdn l\u1eeda plasma, s\u1ea3n ph\u1ea9m h\u00ecnh c\u1ea7u c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao, h\u00ecnh c\u1ea7u t\u1ed1t, k\u00edch th\u01b0\u1edbc h\u1ea1t c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c.<\/p>\n<ul>\n<li><strong>L\u01b0\u1ee3ng m\u01b0a \u0111\u1ed3ng nh\u1ea5t<\/strong><\/li>\n<\/ul>\n<p>Qu\u00e1 tr\u00ecnh k\u1ebft t\u1ee7a trong ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a \u0111\u1ed3ng th\u1ec3 l\u00e0 s\u1ef1 h\u00ecnh th\u00e0nh nh\u00e2n tinh th\u1ec3, sau \u0111\u00f3 k\u1ebft t\u1ee5 v\u00e0 l\u1edbn d\u1ea7n v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 qu\u00e1 tr\u00ecnh k\u1ebft t\u1ee7a kh\u1ecfi dung d\u1ecbch, th\u01b0\u1eddng \u1edf tr\u1ea1ng th\u00e1i kh\u00f4ng c\u00e2n b\u1eb1ng, nh\u01b0ng n\u1ebfu n\u1ed3ng \u0111\u1ed9 c\u1ee7a ch\u1ea5t k\u1ebft t\u1ee7a trong dung d\u1ecbch \u0111\u1ed3ng nh\u1ea5t. c\u00f3 th\u1ec3 gi\u1ea3m, th\u1eadm ch\u00ed t\u1eeb t\u1eeb S\u1ef1 h\u00ecnh th\u00e0nh h\u1ea1t nh\u00e2n s\u1ebd t\u1ea1o ra m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c h\u1ea1t nh\u00e2n tinh th\u1ec3 nh\u1ecf, v\u00e0 c\u00e1c h\u1ea1t k\u1ebft t\u1ee7a m\u1ecbn t\u1ea1o th\u00e0nh s\u1ebd ph\u00e2n t\u00e1n \u0111\u1ed3ng \u0111\u1ec1u trong to\u00e0n b\u1ed9 dung d\u1ecbch, v\u00e0 s\u1ebd duy tr\u00ec tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng trong m\u1ed9t th\u1eddi gian d\u00e0i. Ph\u01b0\u01a1ng ph\u00e1p thu \u0111\u01b0\u1ee3c k\u1ebft t\u1ee7a n\u00e0y \u0110\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a \u0111\u1ed3ng nh\u1ea5t.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 quy tr\u00ecnh \u0111\u01a1n gi\u1ea3n, chi ph\u00ed th\u1ea5p, \u0111\u1ed9 tinh khi\u1ebft cao, s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t thi\u1ebft b\u1ecb, s\u1ea3n xu\u1ea5t \u0111\u01a1n gi\u1ea3n v\u00e0 quy tr\u00ecnh quy tr\u00ecnh ng\u1eafn. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 keo hi\u1ec7n c\u00f3 kh\u00f3 k\u1ebft t\u1ee7a, kh\u00f3 r\u1eeda v\u00e0 l\u1ecdc, b\u1ed9t d\u1ec5 l\u1eabn v\u1edbi t\u00e1c nh\u00e2n k\u1ebft t\u1ee7a, c\u00e1c th\u00e0nh ph\u1ea7n b\u1ed9t kh\u00f4ng d\u1ec5 t\u00e1ch ra trong qu\u00e1 tr\u00ecnh k\u1ebft t\u1ee7a, k\u1ebft t\u1ee7a c\u00f3 th\u1ec3 b\u1ecb h\u00f2a tan l\u1ea1i trong qu\u00e1 tr\u00ecnh r\u1eeda, v\u00e0 t\u00e1c nh\u00e2n k\u1ebft t\u1ee7a c\u0169ng s\u1ebd t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn c\u00e1c ion ph\u1ee9c.<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p nh\u0169 t\u01b0\u01a1ng<\/strong><\/li>\n<\/ul>\n<p>\u0110\u1ec3 thu \u0111\u01b0\u1ee3c c\u00e1c h\u1ea1t b\u1ed9t h\u00ecnh c\u1ea7u, ng\u01b0\u1eddi ta d\u00f9ng l\u1ef1c c\u0103ng m\u1eb7t c\u1eaft gi\u1eefa pha d\u1ea7u v\u00e0 pha n\u01b0\u1edbc t\u1ea1o ra c\u00e1c gi\u1ecdt h\u00ecnh c\u1ea7u c\u1ef1c nh\u1ecf, sao cho s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 h\u00f3a keo c\u1ee7a c\u00e1c h\u1ea1t sol ch\u1ec9 gi\u1edbi h\u1ea1n \u1edf c\u00e1c h\u1ea1t nh\u1ecf li ti, cu\u1ed1i c\u00f9ng thu \u0111\u01b0\u1ee3c c\u00e1c k\u1ebft t\u1ee7a h\u00ecnh c\u1ea7u. . V\u1eadt r\u1ea5t nh\u1ecf.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 ho\u1ea1t \u0111\u1ed9ng \u0111\u01a1n gi\u1ea3n. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 gi\u00e1 th\u00e0nh qu\u00e1 cao, \u0111\u1ed9 c\u1ea7u k\u00e9m.<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p sol-nh\u0169 t\u01b0\u01a1ng-sol<\/strong><\/li>\n<\/ul>\n<p>Takashi Ogihara v\u00e0 c\u1ed9ng s\u1ef1. \u0111\u00e3 s\u1eed d\u1ee5ng th\u1ee7y ph\u00e2n nh\u00f4m alkoxit \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf b\u1ed9t alumin h\u00ecnh c\u1ea7u th\u00f4ng qua qu\u00e1 tr\u00ecnh sol-gel. To\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng th\u1ee7y ph\u00e2n t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p. Trong s\u1ed1 \u0111\u00f3, alkoxit nh\u00f4m h\u00f2a tan octanol chi\u1ebfm 50%, dung m\u00f4i etanol chi\u1ebfm 40% v\u00e0 octanol butanol ph\u00e2n t\u00e1n n\u01b0\u1edbc. C\u1ed3n chi\u1ebfm l\u1ea7n l\u01b0\u1ee3t l\u00e0 9% v\u00e0 1%, ng\u01b0\u1eddi ta d\u00f9ng propyl xenluloz\u01a1 l\u00e0m ch\u1ea5t ph\u00e2n t\u00e1n \u0111\u1ec3 thu \u0111\u01b0\u1ee3c b\u1ed9t \u03b3-alumin c\u00f3 h\u00ecnh c\u1ea7u r\u1ea5t t\u1ed1t.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 kh\u00f4ng c\u00f3 ion t\u1ea1p ch\u1ea5t n\u00e0o \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o trong qu\u00e1 tr\u00ecnh n\u00e0y. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 gi\u00e1 nguy\u00ean li\u1ec7u cao, c\u1ee1 h\u1ea1t c\u1ee7a b\u1ed9t thu \u0111\u01b0\u1ee3c nh\u1ecf, ph\u00e2n b\u1ed1 h\u1eb9p.<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p phun<\/strong><\/li>\n<\/ul>\n<p>B\u1ea3n ch\u1ea5t c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p phun \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf alumin h\u00ecnh c\u1ea7u l\u00e0 th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh chuy\u1ec3n pha trong th\u1eddi gian t\u01b0\u01a1ng \u0111\u1ed1i ng\u1eafn. S\u1ea3n ph\u1ea9m c\u00f3 d\u1ea1ng h\u00ecnh c\u1ea7u nh\u1edd t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c c\u0103ng b\u1ec1 m\u1eb7t. Theo \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a qu\u00e1 tr\u00ecnh chuy\u1ec3n pha, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh phun nhi\u1ec7t ph\u00e2n, phun s\u1ea5y v\u00e0 phun n\u00f3ng ch\u1ea3y. Ph\u00e1p lu\u1eadt.<\/p>\n<p>\u01afu \u0111i\u1ec3m l\u00e0 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 tinh khi\u1ebft cao, hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi v\u00e0 s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 ch\u1ec9 c\u00f3 t\u00e1c d\u1ee5ng v\u1edbi c\u00e1c mu\u1ed1i h\u00f2a tan v\u00e0 c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<h4>\u1ee8ng d\u1ee5ng c\u1ee7a alumin h\u00ecnh c\u1ea7u<\/h4>\n<ul>\n<li><strong>Ch\u1ea5t li\u1ec7u g\u1ed1m s\u1ee9<\/strong><\/li>\n<\/ul>\n<p>Trong c\u00f9ng \u0111i\u1ec1u ki\u1ec7n quy tr\u00ecnh, b\u1ed9t alumin h\u00ecnh c\u1ea7u c\u00f3 \u01b0u \u0111i\u1ec3m v\u1ec1 h\u00ecnh d\u1ea1ng, c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a v\u1eadt li\u1ec7u, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 m\u1eadt \u0111\u1ed9 c\u1ee7a g\u1ed1m, gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 nung k\u1ebft v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t c\u1ee7a g\u1ed1m.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-110670 size-full aligncenter\" src=\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-Ceramic.jpg\" alt=\"\" width=\"1000\" height=\"500\" srcset=\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-Ceramic.jpg 1000w, https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-Ceramic-300x150.jpg 300w, https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-Ceramic-768x384.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<ul>\n<li><strong>V\u1eadt li\u1ec7u l\u1edbp b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t<\/strong><\/li>\n<\/ul>\n<p>Phun b\u1ed9t alumin si\u00eau m\u1ecbn l\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u nh\u1ef1a, s\u01a1n, th\u1ee7y tinh, h\u1ee3p kim v\u00e0 kim lo\u1ea1i c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n b\u1ec1 m\u1eb7t c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n<p><img decoding=\"async\" class=\"wp-image-110696 size-full aligncenter\" src=\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-metal.jpg\" alt=\"\" width=\"1000\" height=\"500\" srcset=\"https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-metal.jpg 1000w, https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-metal-300x150.jpg 300w, https:\/\/www.alpapowder.com\/wp-content\/uploads\/2021\/08\/alumina-metal-768x384.jpg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<ul>\n<li><strong>Ch\u1ea5t x\u00fac t\u00e1c v\u00e0 ch\u1ea5t mang x\u00fac t\u00e1c<\/strong><\/li>\n<\/ul>\n<p>Alumin si\u00eau m\u1ecbn c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m h\u1ea5p ph\u1ee5 m\u1ea1nh, c\u00f3 nhi\u1ec1u \u0111i\u1ec3m ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t, c\u00f3 ho\u1ea1t t\u00ednh ph\u1ea3n \u1ee9ng v\u00e0 \u0111\u1ed9 ch\u1ecdn l\u1ecdc cao, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n c\u1ea7n thi\u1ebft cho ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c. Alumina h\u00ecnh c\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp l\u00e0m ch\u1ea5t x\u00fac t\u00e1c c\u00f3 th\u1ec3 gi\u1ea3m m\u00e0i m\u00f2n v\u00e0 t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a ch\u1ea5t x\u00fac t\u00e1c, do \u0111\u00f3 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t.<\/p>\n<ul>\n<li><strong>\u0110\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc h\u00f3a ch\u1ea5t m\u00e0i m\u00f2n<\/strong><\/li>\n<\/ul>\n<p>\u0110\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc h\u00f3a h\u1ecdc \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c chip m\u1ea1ch t\u00edch h\u1ee3p, h\u1ec7 th\u1ed1ng c\u01a1 vi \u0111i\u1ec7n t\u1eed v\u00e0 \u1ed5 c\u1ee9ng m\u00e1y t\u00ednh. L\u00e0 m\u1ed9t v\u1eadt li\u1ec7u \u0111\u00e1nh b\u00f3ng, alumin h\u00ecnh c\u1ea7u c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c v\u1ebft tr\u01b0\u1ee3t. B\u1ed9t nh\u00f4m h\u00ecnh c\u1ea7u c\u00f3 m\u1eadt \u0111\u1ed9 \u0111\u00f3ng g\u00f3i cao, c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 t\u00e1n x\u1ea1 c\u1ee7a c\u01a1 th\u1ec3 ph\u00e1t s\u00e1ng, gi\u1ea3m s\u1ef1 m\u1ea5t m\u00e1t c\u1ee7a \u00e1nh s\u00e1ng truy\u1ec1n qua m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 do \u0111\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u00e0n h\u00ecnh.<\/p>\n<ul>\n<li><strong>V\u1eadt li\u1ec7u ph\u00e1t quang<\/strong><\/li>\n<\/ul>\n<p>B\u1ed9t nh\u00f4m h\u00ecnh c\u1ea7u c\u00f3 m\u1eadt \u0111\u1ed9 \u0111\u00f3ng g\u00f3i cao, c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 t\u00e1n x\u1ea1 c\u1ee7a c\u01a1 th\u1ec3 ph\u00e1t s\u00e1ng, gi\u1ea3m s\u1ef1 m\u1ea5t m\u00e1t c\u1ee7a \u00e1nh s\u00e1ng truy\u1ec1n qua m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 do \u0111\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 s\u00e1ng c\u1ee7a m\u00e0n h\u00ecnh.<\/p>\n<ul>\n<li>Ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00f3a d\u1ea7u<\/li>\n<\/ul>\n<p>Trong c\u00f4ng nghi\u1ec7p h\u00f3a d\u1ea7u, alumin l\u00e0 ch\u1ea5t mang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t.<\/p>\n<p>&nbsp;<\/p>\n<p>Ngu\u1ed3n b\u00e0i vi\u1ebft: China Powder Network<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aluminium h\u00ecnh c\u1ea7u c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 alumin c\u00e1t, alumin alpha. Trong m\u1ea1ng tinh th\u1ec3 c\u1ee7a alumin lo\u1ea1i \u03b1, c\u00e1c ion oxy \u0111\u01b0\u1ee3c x\u1ebfp d\u00e0y \u0111\u1eb7c trong c\u00e1c h\u00ecnh l\u1ee5c gi\u00e1c, v\u00e0 AI3 + ph\u00e2n b\u1ed1 \u0111\u1ed1i x\u1ee9ng trong t\u00e2m ph\u1ed1i tr\u00ed b\u00e1t di\u1ec7n \u0111\u01b0\u1ee3c bao quanh b\u1edfi c\u00e1c ion oxy. N\u0103ng l\u01b0\u1ee3ng m\u1ea1ng tinh th\u1ec3 l\u1edbn n\u00ean nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y v\u00e0 nhi\u1ec7t \u0111\u1ed9 s\u00f4i cao. N\u00f3 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh ch\u1ed1ng \u0103n m\u00f2n, ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, c\u01b0\u1eddng \u0111\u1ed9 cao, c\u00e1ch nhi\u1ec7t t\u1ed1t, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn, \u0111\u1ed9 c\u1ee9ng cao v\u00e0 ch\u1ed1ng oxy h\u00f3a.<\/p>\n","protected":false},"author":6,"featured_media":110721,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-110735","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/110735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=110735"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/110735\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/110721"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=110735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=110735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=110735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}