{"id":132671,"date":"2024-06-28T11:21:03","date_gmt":"2024-06-28T03:21:03","guid":{"rendered":"https:\/\/www.alpapowder.com\/132671\/"},"modified":"2024-06-28T11:21:04","modified_gmt":"2024-06-28T03:21:04","slug":"nguyen-lieu-tho-chinh-cho-chat-dien-phan-ran-zirconia","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/132671\/","title":{"rendered":"Nguy\u00ean li\u1ec7u th\u00f4 ch\u00ednh cho ch\u1ea5t \u0111i\u1ec7n ph\u00e2n r\u1eafn\u2014Zirconia"},"content":{"rendered":"

\"\"<\/p>\n

ZrO2 l\u00e0 v\u1eadt li\u1ec7u oxit c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, \u0111\u1ed9 c\u1ee9ng cao v\u00e0 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc t\u1ed1t. N\u00f3 c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y v\u00e0 \u0111i\u1ec3m s\u00f4i cao n\u00ean c\u00f3 th\u1ec3 duy tr\u00ec c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao. Ngo\u00e0i ra, ZrO2 c\u00f2n c\u00f3 h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t th\u1ea5p v\u00e0 t\u00ednh ch\u1ea5t c\u00e1ch \u0111i\u1ec7n t\u1ed1t. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng nguy\u00ean li\u1ec7u th\u00f4 \u0111\u01b0\u1ee3c \u01b0a th\u00edch cho ch\u1ea5t \u0111i\u1ec7n ph\u00e2n r\u1eafn LLZO.<\/p>\n

\u0110\u1ed9 c\u1ee9ng cao: \u0110\u1ed9 c\u1ee9ng c\u1ee7a ZrO2 ch\u1ec9 \u0111\u1ee9ng sau kim c\u01b0\u01a1ng v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n cao.<\/p>\n

\u0110i\u1ec3m n\u00f3ng ch\u1ea3y cao: \u0110i\u1ec3m n\u00f3ng ch\u1ea3y c\u1ee7a ZrO2 r\u1ea5t cao (2715oC). \u0110i\u1ec3m n\u00f3ng ch\u1ea3y cao v\u00e0 \u0111\u1ed9 tr\u01a1 h\u00f3a h\u1ecdc l\u00e0m cho ZrO2 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda t\u1ed1t.<\/p>\n

\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc tuy\u1ec7t v\u1eddi: ZrO2 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu t\u1ed1t v\u1edbi c\u00e1c h\u00f3a ch\u1ea5t nh\u01b0 axit v\u00e0 ki\u1ec1m v\u00e0 kh\u00f4ng d\u1ec5 b\u1ecb \u0103n m\u00f2n.<\/p>\n

\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t t\u1ed1t: ZrO2 v\u1eabn c\u00f3 th\u1ec3 duy tr\u00ec t\u1ed1t c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n

\u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn: ZrO2, l\u00e0 v\u1eadt li\u1ec7u g\u1ed1m, c\u00f3 \u0111\u1ed9 b\u1ec1n l\u1edbn (l\u00ean t\u1edbi 1500MPa). M\u1eb7c d\u00f9 \u0111\u1ed9 b\u1ec1n k\u00e9m xa m\u1ed9t s\u1ed1 kim lo\u1ea1i, nh\u01b0ng so v\u1edbi c\u00e1c v\u1eadt li\u1ec7u g\u1ed1m s\u1ee9 kh\u00e1c, oxit zirconium c\u00f3 \u0111\u1ed9 b\u1ec1n \u0111\u1ee9t g\u00e3y cao h\u01a1n v\u00e0 c\u00f3 th\u1ec3 ch\u1ed1ng l\u1ea1i t\u00e1c \u0111\u1ed9ng v\u00e0 \u1ee9ng su\u1ea5t b\u00ean ngo\u00e0i \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

C\u00f3 nhi\u1ec1u quy tr\u00ecnh \u0111i\u1ec1u ch\u1ebf ZrO2 kh\u00e1c nhau, bao g\u1ed3m nhi\u1ec7t ph\u00e2n, sol-gel, l\u1eafng \u0111\u1ecdng h\u01a1i, v.v. Trong s\u1ed1 \u0111\u00f3, nhi\u1ec7t ph\u00e2n l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u1ea3n \u1ee9ng zircon v\u00e0 c\u00e1c nguy\u00ean li\u1ec7u th\u00f4 kh\u00e1c v\u1edbi oxit kim lo\u1ea1i ki\u1ec1m ho\u1eb7c ki\u1ec1m th\u1ed5 \u1edf nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ec3 t\u1ea1o ra zirconat, sau \u0111\u00f3 thu \u0111\u01b0\u1ee3c b\u1ed9t ZrO2 th\u00f4ng qua r\u1eeda axit, l\u1ecdc, s\u1ea5y kh\u00f4 v\u00e0 c\u00e1c b\u01b0\u1edbc kh\u00e1c. Ngo\u00e0i ra, hi\u1ec7u su\u1ea5t c\u1ee7a ZrO2 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng c\u00e1ch pha t\u1ea1p c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c nhau \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c lo\u1ea1i pin th\u1ec3 r\u1eafn kh\u00e1c nhau.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a ZrO2 trong pin th\u1ec3 r\u1eafn ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh trong c\u00e1c ch\u1ea5t \u0111i\u1ec7n ph\u00e2n r\u1eafn oxit, ch\u1eb3ng h\u1ea1n nh\u01b0 oxit lithium lanthanum zirconium (LLZO) v\u00e0 oxit titan lithium lanthanum zirconium (LLZTO), t\u1ed3n t\u1ea1i trong c\u1ea5u tr\u00fac tinh th\u1ec3 lo\u1ea1i garnet. Trong c\u00e1c ch\u1ea5t \u0111i\u1ec7n ph\u00e2n r\u1eafn n\u00e0y, ZrO2 chi\u1ebfm t\u1ef7 l\u1ec7 r\u1ea5t quan tr\u1ecdng. V\u00ed d\u1ee5, trong kh\u1ed1i l\u01b0\u1ee3ng LLZO tr\u01b0\u1edbc khi thi\u00eau k\u1ebft, ZrO2 chi\u1ebfm kho\u1ea3ng 25%. Ngo\u00e0i ra, \u0111\u1ec3 gi\u1ea3m \u0111i\u1ec7n tr\u1edf giao di\u1ec7n trong pin th\u1ec3 r\u1eafn v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 di chuy\u1ec3n ion lithium, v\u1eadt li\u1ec7u \u0111i\u1ec7n c\u1ef1c d\u01b0\u01a1ng v\u00e0 \u00e2m th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c ph\u1ee7 b\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 LLZO. \u0110\u1ed3ng th\u1eddi, pin b\u00e1n r\u1eafn oxit c\u0169ng c\u1ea7n ch\u1ebf t\u1ea1o m\u1ed9t l\u1edbp m\u00e0ng g\u1ed1m bao g\u1ed3m c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 LLZO, \u0111i\u1ec1u n\u00e0y c\u00e0ng l\u00e0m t\u0103ng th\u00eam l\u01b0\u1ee3ng ZrO2 s\u1eed d\u1ee5ng trong pin th\u1ec3 r\u1eafn.<\/p>\n

V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00f4ng ngh\u1ec7 pin th\u1ec3 r\u1eafn v\u00e0 vi\u1ec7c m\u1edf r\u1ed9ng c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3, nhu c\u1ea7u v\u1ec1 ZrO2 l\u00e0m nguy\u00ean li\u1ec7u th\u00f4 \u0111i\u1ec7n ph\u00e2n r\u1eafn s\u1ebd ti\u1ebfp t\u1ee5c t\u0103ng. Trong t\u01b0\u01a1ng lai, ZrO2 d\u1ef1 ki\u1ebfn \u200b\u200bs\u1ebd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng h\u01a1n trong l\u0129nh v\u1ef1c pin th\u1ec3 r\u1eafn b\u1eb1ng c\u00e1ch t\u1ed1i \u01b0u h\u00f3a h\u01a1n n\u1eefa qu\u00e1 tr\u00ecnh \u0111i\u1ec1u ch\u1ebf, \u0111i\u1ec1u ch\u1ec9nh hi\u1ec7u su\u1ea5t v\u00e0 gi\u1ea3m chi ph\u00ed. \u0110\u1ed3ng th\u1eddi, v\u1edbi s\u1ef1 xu\u1ea5t hi\u1ec7n li\u00ean t\u1ee5c c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u \u0111i\u1ec7n ph\u00e2n th\u1ec3 r\u1eafn m\u1edbi, ZrO2 c\u0169ng s\u1ebd ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi s\u1ef1 c\u1ea1nh tranh v\u00e0 th\u00e1ch th\u1ee9c gay g\u1eaft h\u01a1n. Tuy nhi\u00ean, v\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o v\u00e0 tri\u1ec3n v\u1ecdng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i, ZrO2 v\u1eabn s\u1ebd c\u00f3 m\u1ed9t v\u1ecb tr\u00ed kh\u00f4ng th\u1ec3 thay th\u1ebf trong l\u0129nh v\u1ef1c pin th\u1ec3 r\u1eafn.<\/p>\n","protected":false},"excerpt":{"rendered":"

Trong t\u01b0\u01a1ng lai, ZrO2 d\u1ef1 ki\u1ebfn \u200b\u200bs\u1ebd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng h\u01a1n trong l\u0129nh v\u1ef1c pin th\u1ec3 r\u1eafn b\u1eb1ng c\u00e1ch t\u1ed1i \u01b0u h\u00f3a h\u01a1n n\u1eefa qu\u00e1 tr\u00ecnh \u0111i\u1ec1u ch\u1ebf, \u0111i\u1ec1u ch\u1ec9nh hi\u1ec7u su\u1ea5t v\u00e0 gi\u1ea3m chi ph\u00ed.<\/p>\n","protected":false},"author":7,"featured_media":132635,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-132671","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\/132671"}],"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=132671"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/132671\/revisions"}],"predecessor-version":[{"id":132672,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/132671\/revisions\/132672"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/132635"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=132671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=132671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=132671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}