T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 6 – Arkady Leokum<\/p>\n\n\n\n
Th\u1ea1ch anh l\u00e0 m\u1ed9t lo\u1ea1i h\u1ea1t tr\u1eafng trong su\u1ed1t, l\u1ea5p l\u00e1nh d\u01b0\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi, c\u00f3 th\u1ec3 l\u1ea5y \u0111\u01b0\u1ee3c \u0111a tinh th\u1ec3 silic, ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng nhi\u1ec1u trong c\u00f4ng nghi\u1ec7p nh\u01b0 ng\u00e0nh \u0111i\u1ec7n t\u1eed, luy\u1ec7n kim, c\u01a1 kh\u00ed, c\u00f4ng nghi\u1ec7p h\u00f3a\u2026 T\u1eeb c\u00e1i \u0111\u1ed3ng h\u1ed3 nh\u1ecf, m\u00e1y m\u00f3c ch\u00ednh x\u00e1c \u0111\u1ebfn c\u00e1i m\u00e1y t\u00ednh nhi\u1ec1u ch\u1ee9c n\u0103ng \u0111\u1ec1u kh\u00f4ng th\u1ec3 thi\u1ebfu \u201ctinh th\u1ec3 silic\u201d. \u1ede nhi\u1ec7t \u0111\u1ed9 150-2000C n\u00f3 v\u1eabn l\u00e0m vi\u1ec7c b\u00ecnh th\u01b0\u1eddng, th\u1ec3 t\u00edch nh\u1ecf, tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, b\u1ec1n, ti\u1ebft ki\u1ec7m \u0111i\u1ec7n, hi\u1ec7u su\u1ea5t cao, cho n\u00ean \u201ctinh th\u1ec3 silic\u201d l\u00e0 v\u1eadt li\u1ec7u kh\u00f4ng th\u1ec3 thi\u1ebfu trong ng\u00e0nh khoa h\u1ecdc k\u1ef9 thu\u1eadt m\u0169i nh\u1ecdn.<\/p>\n\n\n\n
\u0110\u00e1 v\u00e0ng \u0111\u1ed3ng (kim h\u1ed3ng th\u1ea1ch) c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i kho\u00e1ng \u0111\u1ec3 l\u1ea5y ra m\u1ed9t lo\u1ea1i qu\u00ed – titan. Titan l\u00e0 kim lo\u1ea1i ch\u1ebf t\u1ea1o ra t\u00ean l\u1eeda, v\u1ec7 tinh, l\u00e0 kim lo\u1ea1i nh\u1eb9 m\u1edbi, r\u1ea5t r\u1eafn ch\u1eafc, t\u00ednh ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t, \u0111i\u1ec3m n\u00f3ng ch\u1ea3y r\u1ea5t cao: t\u1edbi 17250C, cao h\u01a1n nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y c\u1ee7a th\u00e9p t\u1edbi 2000C. H\u1ee3p kim nh\u00f4m – mangn\u00e9 th\u1ecfa m\u00e3n nhu c\u1ea7u ch\u1ebf ng\u00e0nh ch\u1ebf t\u1ea1o m\u00e1y bay; song kh\u00f4ng th\u1ec3 d\u00f9ng l\u00e0m v\u1ecf v\u1ec7 tinh, t\u00ean l\u1eeda v\u00ec \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u. Th\u1ebf l\u00e0 ph\u1ea3i nh\u1edd \u0111\u1ebfn titan. \u0110\u1ed9 c\u1ee9ng c\u1ee7a titan g\u1ea7n t\u01b0\u01a1ng t\u1ef1 nh\u01b0 th\u00e9p nh\u01b0ng tr\u1ecdng l\u01b0\u1ee3ng l\u1ea1i ch\u1ec9 b\u1eb1ng 1\/2 th\u00e9p; titan l\u00e0 v\u1eadt li\u1ec7u kh\u00f4ng th\u1ec3 thi\u1ebfu trong ng\u00e0nh ch\u1ebf t\u1ea1o t\u00ean l\u1eeda, v\u1ec7 tinh.<\/p>\n\n\n\n
\u0110\u00e1 kim c\u01b0\u01a1ng l\u00e0 lo\u1ea1i c\u00e1t kho\u00e1ng qu\u00ed b\u00e1u. Trong c\u00e1t bi\u1ec3n n\u00f3 c\u00f3 m\u00e0u s\u1eafc r\u1ea5t \u0111\u1eb9p: v\u00e0ng nh\u1ea1t, xanh da tr\u1eddi, xanh th\u1eb3m, h\u1ed3ng v\u00e0 \u0111en; m\u00e0u c\u1ee7a n\u00f3 \u00e1nh l\u00ean r\u1ea5t r\u00f5. \u0110\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt nh\u1ea5t c\u1ee7a \u0111\u00e1 kim c\u01b0\u01a1ng l\u00e0 v\u00f4 c\u00f9ng c\u1ee9ng r\u1eafn, l\u00e0 qu\u1eb7ng thi\u00ean nhi\u00ean c\u00f3 \u0111\u1ed9 c\u1ee9ng l\u1edbn nh\u1ea5t, c\u00f3 nhi\u1ec1u c\u00f4ng d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p: l\u00e0m m\u0169i khoan v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 c\u1eaft g\u1ecdt, m\u00e0i c\u1eaft kim lo\u1ea1i, c\u00e1n k\u00e9o th\u00e0nh d\u00e2y kim lo\u1ea1i m\u1ea3nh c\u1ee9ng\u2026<\/p>\n\n\n\n
Trong c\u00e1t bi\u1ec3n c\u00f2n c\u00f3 r\u1ea5t nhi\u1ec1u qu\u1eb7ng kim lo\u1ea1i qu\u00ed kh\u00e1c nh\u01b0 v\u00e0ng (Au), platin (Pt), vonfram (W)\u2026 \u0111\u1ec1u l\u00e0 ngu\u1ed3n nguy\u00ean li\u1ec7u qu\u00ed b\u00e1u cho c\u00f4ng nghi\u1ec7p qu\u1ed1c ph\u00f2ng, nghi\u00ean c\u1ee9u.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 6 – Arkady Leokum Th\u1ea1ch anh l\u00e0 m\u1ed9t lo\u1ea1i h\u1ea1t tr\u1eafng trong su\u1ed1t, l\u1ea5p l\u00e1nh d\u01b0\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi, c\u00f3 th\u1ec3 l\u1ea5y \u0111\u01b0\u1ee3c \u0111a tinh th\u1ec3 silic, ch\u00fang \u0111\u01b0\u1ee3c d\u00f9ng nhi\u1ec1u trong c\u00f4ng nghi\u1ec7p nh\u01b0 ng\u00e0nh \u0111i\u1ec7n t\u1eed, luy\u1ec7n kim, c\u01a1 kh\u00ed, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-14959","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=14959"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14959\/revisions"}],"predecessor-version":[{"id":14960,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14959\/revisions\/14960"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14959"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14959"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}