{"id":692848,"date":"2024-10-24T15:10:12","date_gmt":"2024-10-24T14:10:12","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=692848"},"modified":"2024-10-24T15:10:12","modified_gmt":"2024-10-24T14:10:12","slug":"oxit-nhom-on-dinh-nhiet-cao-ung-dung-cach-dien","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/oxit-nhom-on-dinh-nhiet-cao-ung-dung-cach-dien\/","title":{"rendered":"\u00d4x\u00edt Nh\u00f4m | \u1ed4n \u0110\u1ecbnh Nhi\u1ec7t Cao, \u1ee8ng D\u1ee5ng C\u00e1ch \u0110i\u1ec7n"},"content":{"rendered":"<p class=\"sidekick\">\u00d4x\u00edt Nh\u00f4m: V\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao v\u00e0 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n v\u01b0\u1ee3t tr\u1ed9i, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 \u0111i\u1ec7n t\u1eed.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/oxit_nhom_on_dinh_nhiet_cao_ung_dung_cach_dien.png\" alt=\"\u00d4x\u00edt Nh\u00f4m | \u1ed4n \u0110\u1ecbnh Nhi\u1ec7t Cao, \u1ee8ng D\u1ee5ng C\u00e1ch \u0110i\u1ec7n\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u00d4x\u00edt Nh\u00f4m: \u1ed4n \u0110\u1ecbnh Nhi\u1ec7t Cao v\u00e0 \u1ee8ng D\u1ee5ng C\u00e1ch \u0110i\u1ec7n<\/h2>\n<p>\u00d4x\u00edt nh\u00f4m, c\u00f2n g\u1ecdi l\u00e0 alumina (Al<sub>2<\/sub>O<sub>3<\/sub>), l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u quan tr\u1ecdng trong nhi\u1ec1u l\u0129nh v\u1ef1c c\u1ee7a k\u1ef9 thu\u1eadt nhi\u1ec7t v\u00e0 c\u00e1ch \u0111i\u1ec7n. V\u1edbi \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao v\u00e0 t\u00ednh ch\u1ea5t c\u00e1ch \u0111i\u1ec7n tuy\u1ec7t v\u1eddi, \u00f4x\u00edt nh\u00f4m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 khoa h\u1ecdc.<\/p>\n<h2>\u0110\u1eb7c T\u00ednh N\u1ed5i B\u1eadt c\u1ee7a \u00d4x\u00edt Nh\u00f4m<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh n\u1ed5i b\u1eadt c\u1ee7a \u00f4x\u00edt nh\u00f4m, gi\u00fap n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao:<\/strong> \u00d4x\u00edt nh\u00f4m c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao m\u00e0 kh\u00f4ng b\u1ecb ph\u00e2n h\u1ee7y ho\u1eb7c ch\u1ea3y. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t t\u1ed1t.<\/li>\n<li><strong>T\u00ednh ch\u1ea5t c\u00e1ch \u0111i\u1ec7n:<\/strong> V\u1edbi \u0111\u1ed9 b\u1ec1n \u0111i\u1ec7n m\u00f4i cao, \u00f4x\u00edt nh\u00f4m l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n tuy\u1ec7t v\u1eddi, l\u00fd t\u01b0\u1edfng cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n t\u1eed y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n hi\u1ec7u qu\u1ea3.<\/li>\n<li><strong>\u0110\u1ed9 c\u1ee9ng cao:<\/strong> \u00d4x\u00edt nh\u00f4m c\u00f3 \u0111\u1ed9 c\u1ee9ng r\u1ea5t cao (kho\u1ea3ng 9 tr\u00ean thang Mohs), ch\u1ec9 sau kim c\u01b0\u01a1ng. \u0110i\u1ec1u n\u00e0y gi\u00fap n\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00e0i m\u00f2n trong nhi\u1ec1u \u1ee9ng d\u1ee5ng.<\/li>\n<li><strong>Ch\u1ed1ng \u0103n m\u00f2n:<\/strong> \u00d4x\u00edt nh\u00f4m \u00edt b\u1ecb \u0103n m\u00f2n b\u1edfi h\u1ea7u h\u1ebft c\u00e1c h\u00f3a ch\u1ea5t, \u0111i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<li><strong>T\u00ednh quang h\u1ecdc:<\/strong> Alumina trong su\u1ed1t \u0111\u1ebfn b\u00e1n trong su\u1ed1t, l\u00e0m cho n\u00f3 h\u1eefu d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng quang h\u1ecdc nh\u01b0 k\u00ednh hi\u1ec3n vi v\u00e0 k\u00ednh thi\u00ean v\u0103n.<\/li>\n<\/ul>\n<h2>\u1ee8ng D\u1ee5ng C\u1ee7a \u00d4x\u00edt Nh\u00f4m<\/h2>\n<p>\u00d4x\u00edt nh\u00f4m \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c c\u1ee7a k\u1ef9 thu\u1eadt nhi\u1ec7t v\u00e0 c\u00e1ch \u0111i\u1ec7n:<\/p>\n<ol>\n<li><strong>V\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda:<\/strong> Nh\u1edd v\u00e0o \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao, \u00f4x\u00edt nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t c\u00e1c v\u1eadt li\u1ec7u ch\u1ecbu l\u1eeda trong c\u00f4ng nghi\u1ec7p luy\u1ec7n kim, l\u00f2 cao v\u00e0 c\u00e1c l\u00f2 nhi\u1ec7t kh\u00e1c.<\/li>\n<li><strong>L\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7:<\/strong> \u00d4x\u00edt nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 cho c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng t\u00ednh ch\u1ea5t ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00e0ng kh\u00f4ng v\u00e0 \u00f4 t\u00f4.<\/li>\n<li><strong>Ch\u1ea5t c\u00e1ch \u0111i\u1ec7n:<\/strong> \u0110\u1ed9 b\u1ec1n \u0111i\u1ec7n cao c\u1ee7a \u00f4x\u00edt nh\u00f4m l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c th\u00e0nh ph\u1ea7n c\u00e1ch \u0111i\u1ec7n, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c b\u1ed9 ph\u1eadn trong t\u1ee5 \u0111i\u1ec7n v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed cao c\u1ea5p.<\/li>\n<li><strong>Y t\u1ebf:<\/strong> \u00d4x\u00edt nh\u00f4m c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng h\u1ee3p sinh h\u1ecdc t\u1ed1t, ngh\u0129a l\u00e0 n\u00f3 kh\u00f4ng g\u00e2y h\u1ea1i cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi. V\u00ec l\u00fd do n\u00e0y, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf nh\u01b0 ch\u00e2n r\u0103ng gi\u1ea3 v\u00e0 c\u1ea5y gh\u00e9p x\u01b0\u01a1ng.<\/li>\n<li><strong>G\u1ed1m k\u1ef9 thu\u1eadt:<\/strong> Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p g\u1ed1m, \u00f4x\u00edt nh\u00f4m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t g\u1ed1m k\u1ef9 thu\u1eadt v\u1edbi \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao, kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t v\u00e0 c\u00e1ch \u0111i\u1ec7n t\u1ed1t.<\/li>\n<\/ol>\n<p>\u0110\u1ec3 k\u1ebft lu\u1eadn, \u00f4x\u00edt nh\u00f4m (Al<sub>2<\/sub>O<sub>3<\/sub>) l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u c\u00f3 nhi\u1ec1u \u0111\u1eb7c t\u00ednh \u01b0u vi\u1ec7t, t\u1eeb kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 c\u00e1ch \u0111i\u1ec7n \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t v\u1eadt li\u1ec7u quan tr\u1ecdng trong nhi\u1ec1u l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00d4x\u00edt Nh\u00f4m: V\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao v\u00e0 kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n v\u01b0\u1ee3t tr\u1ed9i, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 \u0111i\u1ec7n t\u1eed.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00d4x\u00edt Nh\u00f4m | \u1ed4n \u0110\u1ecbnh Nhi\u1ec7t Cao, \u1ee8ng 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