{"id":131400,"date":"2024-03-25T10:59:02","date_gmt":"2024-03-25T02:59:02","guid":{"rendered":"https:\/\/www.alpapowder.com\/131400\/"},"modified":"2024-03-25T10:59:04","modified_gmt":"2024-03-25T02:59:04","slug":"cac-yeu-cau-doi-voi-bot-alumina-trong-cac-ung-dung-co-gia-tri-gia-tang-cao-la-gi","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/131400\/","title":{"rendered":"C\u00e1c y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi b\u1ed9t alumina trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 gi\u00e1 tr\u1ecb gia t\u0103ng cao l\u00e0 g\u00ec?"},"content":{"rendered":"

\"\"<\/p>\n

C\u00e1c h\u1ea1t m\u1eadt \u0111\u1ed9 cao Alumina \u0111\u1ec3 ph\u00e1t tri\u1ec3n tinh th\u1ec3 sapphire<\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, sapphire l\u00e0 m\u1ed9t tinh th\u1ec3 \u0111\u01a1n alumina. S\u1ef1 t\u0103ng tr\u01b0\u1edfng c\u1ee7a n\u00f3 s\u1eed d\u1ee5ng b\u1ed9t alumina c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao v\u1edbi \u0111\u1ed9 tinh khi\u1ebft> 99,995% (th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 alumina 5N) l\u00e0m nguy\u00ean li\u1ec7u th\u00f4. Tuy nhi\u00ean, do m\u1eadt \u0111\u1ed9 \u0111\u00f3ng g\u00f3i c\u1ee7a c\u00e1c h\u1ea1t alumina micronized nh\u1ecf, th\u01b0\u1eddng nh\u1ecf h\u01a1n 1g \/ cm3, l\u01b0\u1ee3ng s\u1ea1c c\u1ee7a m\u1ed9t l\u00f2 nh\u1ecf, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t. N\u00f3i chung, alumina \u0111\u01b0\u1ee3c c\u00f4 \u0111\u1eb7c th\u00e0nh c\u00e1c h\u1ea1t c\u00f3 m\u1eadt \u0111\u1ed9 cao th\u00f4ng qua x\u1eed l\u00fd th\u00edch h\u1ee3p tr\u01b0\u1edbc khi n\u1ea1p \u0111\u1ec3 ph\u00e1t tri\u1ec3n tinh th\u1ec3.<\/p>\n

 <\/p>\n

Ch\u1ea5t m\u00e0i m\u00f2n nano-alumina cho ch\u1ea5t m\u00e0i m\u00f2n \u0111\u00e1nh b\u00f3ng CMP<\/p>\n

Hi\u1ec7n nay, ch\u1ea5t l\u1ecfng \u0111\u00e1nh b\u00f3ng CMP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m ch\u1ea5t l\u1ecfng \u0111\u00e1nh b\u00f3ng silica<\/a> sol, ch\u1ea5t l\u1ecfng \u0111\u00e1nh b\u00f3ng oxit xeri v\u00e0 ch\u1ea5t l\u1ecfng \u0111\u00e1nh b\u00f3ng alumina. Hai lo\u1ea1i \u0111\u1ea7u ti\u00ean c\u00f3 \u0111\u1ed9 c\u1ee9ng h\u1ea1t m\u00e0i m\u00f2n nh\u1ecf v\u00e0 kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng c\u00e1c v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 c\u1ee9ng cao. Do \u0111\u00f3, ch\u1ea5t l\u1ecfng \u0111\u00e1nh b\u00f3ng oxit c\u00f3 \u0111\u1ed9 c\u1ee9ng Mohs c\u1ee7a Nh\u00f4m 9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong vi\u1ec7c \u0111\u00e1nh b\u00f3ng ch\u00ednh x\u00e1c c\u00e1c b\u1ed9 ph\u1eadn l\u00e0m b\u1eb1ng sapphire v\u00e0 c\u1eeda s\u1ed5 ph\u1eb3ng, ch\u1ea5t n\u1ec1n th\u1ee7y tinh k\u1ebft tinh, g\u1ed1m \u0111a tinh th\u1ec3 YAG, \u1ed1ng k\u00ednh quang h\u1ecdc, chip cao c\u1ea5p v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c.<\/p>\n

K\u00edch th\u01b0\u1edbc, h\u00ecnh d\u1ea1ng v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a c\u00e1c h\u1ea1t m\u00e0i m\u00f2n \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 \u0111\u00e1nh b\u00f3ng. Do \u0111\u00f3, c\u00e1c h\u1ea1t alumina \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t m\u00e0i m\u00f2n \u0111\u00e1nh b\u00f3ng c\u01a1 h\u1ecdc h\u00f3a h\u1ecdc ph\u1ea3i \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u sau:<\/p>\n

1. \u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ph\u1eb3ng \u1edf m\u1ee9c angstrom, k\u00edch th\u01b0\u1edbc h\u1ea1t alumina \u00edt nh\u1ea5t ph\u1ea3i l\u00e0 100nm v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 ph\u1ea3i h\u1eb9p;<\/p>\n

2. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 c\u1ee9ng, c\u1ea7n ph\u1ea3i k\u1ebft tinh pha \u03b1 ho\u00e0n to\u00e0n. Tuy nhi\u00ean, \u0111\u1ec3 t\u00ednh \u0111\u1ebfn c\u00e1c y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc h\u1ea1t \u1edf tr\u00ean, qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft c\u1ea7n \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n \u0111\u1ec3 tr\u00e1nh s\u1ef1 bi\u1ebfn \u0111\u1ed5i pha \u03b1 ho\u00e0n to\u00e0n trong khi h\u1ea1t ph\u00e1t tri\u1ec3n.<\/p>\n

3. V\u00ec qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng t\u1ea5m wafer c\u00f3 y\u00eau c\u1ea7u \u0111\u1ed9 tinh khi\u1ebft c\u1ef1c cao n\u00ean Na, Ca v\u00e0 c\u00e1c ion t\u1eeb c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd, l\u00ean \u0111\u1ebfn m\u1ee9c ppm, trong khi c\u00e1c nguy\u00ean t\u1ed1 ph\u00f3ng x\u1ea1 U v\u00e0 Th c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c ppb.<\/p>\n

4. Ch\u1ea5t l\u1ecfng \u0111\u00e1nh b\u00f3ng c\u00f3 ch\u1ee9a Al2O3 c\u00f3 \u0111\u1ed9 ch\u1ecdn l\u1ecdc th\u1ea5p, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ph\u00e2n t\u00e1n k\u00e9m v\u00e0 d\u1ec5 k\u1ebft t\u1ee5, d\u1ec5 g\u00e2y tr\u1ea7y x\u01b0\u1edbc nghi\u00eam tr\u1ecdng tr\u00ean b\u1ec1 m\u1eb7t \u0111\u00e1nh b\u00f3ng. N\u00f3i chung, c\u1ea7n ph\u1ea3i s\u1eeda \u0111\u1ed5i \u0111\u1ec3 c\u1ea3i thi\u1ec7n s\u1ef1 ph\u00e2n t\u00e1n c\u1ee7a n\u00f3 trong dung d\u1ecbch \u0111\u00e1nh b\u00f3ng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng t\u1ed1t.<\/p>\n

Alumina h\u00ecnh c\u1ea7u ph\u00e1t x\u1ea1 alpha th\u1ea5p cho bao b\u00ec b\u00e1n d\u1eabn<\/p>\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb b\u00e1n d\u1eabn v\u00e0 n\u00e2ng cao kh\u1ea3 n\u0103ng c\u1ea1nh tranh c\u1ed1t l\u00f5i c\u1ee7a s\u1ea3n ph\u1ea9m, ng\u01b0\u1eddi ta th\u01b0\u1eddng ph\u1ea3i s\u1eed d\u1ee5ng alumina h\u00ecnh c\u1ea7u tia \u03b1 th\u1ea5p l\u00e0m v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i. M\u1ed9t m\u1eb7t, n\u00f3 c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb b\u1ed9 nh\u1edb do tia \u03b1 g\u00e2y ra, m\u1eb7t kh\u00e1c, n\u00f3 c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao. \u0110\u1ed9 d\u1eabn \u0111i\u1ec7n mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t t\u1ed1t cho thi\u1ebft b\u1ecb.<\/p>\n

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G\u1ed1m s\u1ee9 trong su\u1ed1t Alumina<\/p>\n

Tr\u01b0\u1edbc h\u1ebft, nh\u1eb1m ng\u0103n ng\u1eeba t\u1ea1p ch\u1ea5t trong b\u1ed9t Al2O3 d\u1ec5 d\u00e0ng h\u00ecnh th\u00e0nh c\u00e1c pha kh\u00e1c nhau v\u00e0 l\u00e0m t\u0103ng t\u00e2m t\u00e1n x\u1ea1 \u00e1nh s\u00e1ng d\u1eabn \u0111\u1ebfn gi\u1ea3m c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng chi\u1ebfu theo h\u01b0\u1edbng t\u1edbi, t\u1eeb \u0111\u00f3 l\u00e0m gi\u1ea3m \u0111\u1ed9 trong su\u1ed1t c\u1ee7a s\u1ea3n ph\u1ea9m, \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a b\u1ed9t Al2O3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u kh\u00f4ng d\u01b0\u1edbi 99,9% v\u00e0 ph\u1ea3i l\u00e0 \u03b1-Al2O3 c\u00f3 c\u1ea5u tr\u00fac \u1ed5n \u0111\u1ecbnh. Th\u1ee9 hai, \u0111\u1ec3 l\u00e0m suy y\u1ebfu hi\u1ec7u \u1ee9ng l\u01b0\u1ee1ng chi\u1ebft c\u1ee7a ch\u00ednh n\u00f3, k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a n\u00f3 c\u0169ng ph\u1ea3i gi\u1ea3m c\u00e0ng nhi\u1ec1u c\u00e0ng t\u1ed1t. Do \u0111\u00f3, k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a b\u1ed9t d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o g\u1ed1m s\u1ee9 trong su\u1ed1t alumina c\u0169ng ph\u1ea3i nh\u1ecf h\u01a1n 0,3 \u03bcm v\u00e0 c\u00f3 ho\u1ea1t t\u00ednh thi\u00eau k\u1ebft cao. Ngo\u00e0i ra, \u0111\u1ec3 tr\u00e1nh k\u1ebft t\u1ee5 th\u00e0nh h\u1ea1t l\u1edbn v\u00e0 l\u00e0m m\u1ea5t \u0111i \u01b0u \u0111i\u1ec3m c\u1ee7a h\u1ea1t nh\u1ecf ban \u0111\u1ea7u, b\u1ed9t c\u0169ng ph\u1ea3i \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 ph\u00e2n t\u00e1n cao.<\/p>\n

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Ch\u1ea5t n\u1ec1n g\u1ed1m alumina truy\u1ec1n th\u00f4ng t\u1ea7n s\u1ed1 cao<\/p>\n

G\u1ed1m alumina c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao hi\u1ec7n l\u00e0 v\u1eadt li\u1ec7u n\u1ec1n \u0111\u00f3ng g\u00f3i l\u00fd t\u01b0\u1edfng nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t do t\u00ednh ch\u1ea5t \u0111i\u1ec7n m\u00f4i t\u1ed1t, kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng x\u00f3i m\u00f2n m\u00f4i tr\u01b0\u1eddng. Tuy nhi\u00ean, hi\u1ec7u su\u1ea5t ch\u00ednh c\u1ee7a ch\u1ea5t n\u1ec1n alumina t\u0103ng l\u00ean khi h\u00e0m l\u01b0\u1ee3ng alumina t\u0103ng l\u00ean. \u0110\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u li\u00ean l\u1ea1c t\u1ea7n s\u1ed1 cao, \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a ch\u1ea5t n\u1ec1n g\u1ed1m alumina ph\u1ea3i \u0111\u1ea1t 99,5% ho\u1eb7c th\u1eadm ch\u00ed 99,9%.<\/p>\n","protected":false},"excerpt":{"rendered":"

L\u00e0 m\u1ed9t v\u1eadt li\u1ec7u v\u00f4 c\u01a1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, alumina lo\u1ea1i phi luy\u1ec7n kim \u0111\u00e3 \u0111\u01b0\u1ee3c chia th\u00e0nh h\u01a1n 400 lo\u1ea1i.<\/p>\n","protected":false},"author":7,"featured_media":131364,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-131400","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\/131400","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\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=131400"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/131400\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/131364"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=131400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=131400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=131400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}