{"id":682085,"date":"2024-09-28T13:27:43","date_gmt":"2024-09-28T12:27:43","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=682085"},"modified":"2024-09-28T13:27:43","modified_gmt":"2024-09-28T12:27:43","slug":"12-phuong-phap-phan-tich-nhiet-cho-vat-lieu","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/12-phuong-phap-phan-tich-nhiet-cho-vat-lieu\/","title":{"rendered":"12 Ph\u01b0\u01a1ng Ph\u00e1p Ph\u00e2n T\u00edch Nhi\u1ec7t Cho V\u1eadt Li\u1ec7u"},"content":{"rendered":"

Ph\u00e2n t\u00edch nhi\u1ec7t cho v\u1eadt li\u1ec7u b\u1eb1ng 12 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau, cung c\u1ea5p ki\u1ebfn th\u1ee9c to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch \u0111\u00e1nh gi\u00e1 v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n

\"12<\/p>\n

12 Ph\u01b0\u01a1ng Ph\u00e1p Ph\u00e2n T\u00edch Nhi\u1ec7t Cho V\u1eadt Li\u1ec7u<\/h2>\n

Ph\u00e2n t\u00edch nhi\u1ec7t l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c quan tr\u1ecdng trong k\u1ef9 thu\u1eadt nhi\u1ec7t, gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u. Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nghi\u00ean c\u1ee9u hi\u1ec7u su\u1ea5t nhi\u1ec7t, s\u1ef1 thay \u0111\u1ed5i pha, v\u00e0 \u0111\u1ed9 b\u1ec1n nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 12 ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn trong ph\u00e2n t\u00edch nhi\u1ec7t cho v\u1eadt li\u1ec7u.<\/p>\n

1. Ph\u00e2n T\u00edch Nhi\u1ec7t Vi Sai (DSC)<\/h3>\n

Ph\u00e2n t\u00edch nhi\u1ec7t vi sai (DSC) \u0111o l\u01b0\u1eddng s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 nhi\u1ec7t \u0111\u1ed9 gi\u1eefa m\u1eabu v\u00e0 tham chi\u1ebfu khi ch\u00fang c\u00f9ng \u0111\u01b0\u1ee3c gia nhi\u1ec7t ho\u1eb7c l\u00e0m l\u1ea1nh. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c qu\u00e1 tr\u00ecnh nhi\u1ec7t nh\u01b0 s\u1ef1 n\u00f3ng ch\u1ea3y, k\u1ebft tinh, v\u00e0 c\u00e1c pha chuy\u1ec3n h\u00f3a.<\/p>\n

2. Ph\u00e2n T\u00edch Nhi\u1ec7t Tr\u1ecdng L\u01b0\u1ee3ng (TGA)<\/h3>\n

Ph\u00e2n t\u00edch nhi\u1ec7t tr\u1ecdng l\u01b0\u1ee3ng (TGA) theo d\u00f5i s\u1ef1 thay \u0111\u1ed5i kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1eabu khi nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i. \u0110\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong nghi\u00ean c\u1ee9u s\u1ef1 bay h\u01a1i, ph\u00e2n h\u1ee7y, v\u00e0 oxy h\u00f3a.<\/p>\n

3. Ph\u00e2n T\u00edch Nhi\u1ec7t Vi Sai Qu\u00e9t (DSC)<\/h3>\n

DSC qu\u00e9t l\u00e0 m\u1ed9t bi\u1ebfn th\u1ec3 c\u1ee7a DSC, trong \u0111\u00f3 m\u1eabu \u0111\u01b0\u1ee3c gia nhi\u1ec7t ho\u1eb7c l\u00e0m l\u1ea1nh v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i, gi\u00fap \u0111\u00e1nh gi\u00e1 c\u00e1c s\u1ef1 ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 nh\u01b0 c\u00e1c pha chuy\u1ec3n h\u00f3a, k\u1ebft tinh, v\u00e0 n\u00f3ng ch\u1ea3y.<\/p>\n

4. Ph\u00e2n T\u00edch \u0110i\u1ec7n L\u01b0\u1ee3ng Vi Sai (DTA)<\/h3>\n

Ph\u00e2n t\u00edch \u0111i\u1ec7n l\u01b0\u1ee3ng vi sai (DTA) \u0111o s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 nhi\u1ec7t l\u01b0\u1ee3ng gi\u1eefa m\u1eabu v\u00e0 tham chi\u1ebfu, cho ph\u00e9p x\u00e1c \u0111\u1ecbnh c\u00e1c qu\u00e1 tr\u00ecnh nhi\u1ec7t nh\u01b0 ph\u1ea3n \u1ee9ng nhi\u1ec7t v\u00e0 pha chuy\u1ec3n h\u00f3a.<\/p>\n

5. Qu\u00e1 Tr\u00ecnh T\u1ef1 L\u00e0m L\u1ea1nh<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y theo d\u00f5i s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t khi m\u1eabu t\u1ef1 l\u00e0m l\u1ea1nh t\u1ef1 nhi\u00ean, \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng gi\u1eef nhi\u1ec7t v\u00e0 truy\u1ec1n nhi\u1ec7t.<\/p>\n

6. \u0110o \u0110\u1ed9 D\u1eabn Nhi\u1ec7t<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0\u1eddng \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a m\u1eabu, \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n

7. Ph\u00e2n T\u00edch Nhi\u1ec7t \u0110\u1ed9ng (TG)<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111o l\u01b0\u1eddng s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9ng h\u1ecdc c\u1ee7a h\u1ec7 nhi\u1ec7t b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 v\u00e0 ghi l\u1ea1i c\u00e1c bi\u1ebfn \u0111\u1ed5i v\u1ec1 tr\u1ea1ng th\u00e1i c\u1ee7a m\u1eabu.<\/p>\n

8. Ph\u00e2n T\u00edch H\u1ea5p Ph\u1ee5 Kh\u00ed<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng h\u1ea5p ph\u1ee5 kh\u00ed c\u1ee7a v\u1eadt li\u1ec7u khi thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u x\u1ed1p.<\/p>\n

9. Nhi\u1ec7t L\u01b0\u1ee3ng Nhi\u1ec7t K\u1ebf (Heat Flow Calorimetry)<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p \u0111o nhi\u1ec7t l\u01b0\u1ee3ng trao \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng, gi\u00fap \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng nhi\u1ec7t.<\/p>\n

10. Giao Thoa Quang (Optical Interference)<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1eed d\u1ee5ng hi\u1ec7n t\u01b0\u1ee3ng giao thoa quang h\u1ecdc \u0111\u1ec3 \u0111o s\u1ef1 thay \u0111\u1ed5i c\u1ea5u tr\u00fac c\u1ee7a v\u1eadt li\u1ec7u khi thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/p>\n

11. Ph\u00e2n T\u00edch Truy\u1ec1n Nhi\u1ec7t (Heat Transfer Analysis)<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch c\u00e1ch m\u00e0 nhi\u1ec7t \u0111\u01b0\u1ee3c truy\u1ec1n qua v\u1eadt li\u1ec7u, bao g\u1ed3m d\u1eabn nhi\u1ec7t, \u0111\u1ed1i l\u01b0u, v\u00e0 b\u1ee9c x\u1ea1.<\/p>\n

12. \u0110o \u0110\u1ed9 Nhi\u1ec7t \u0110i\u1ec7n (Thermoelectric Measurement)<\/h3>\n

Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111o s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa nhi\u1ec7t v\u00e0 \u0111i\u1ec7n trong v\u1eadt li\u1ec7u, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong nghi\u00ean c\u1ee9u c\u00e1c thi\u1ebft b\u1ecb nhi\u1ec7t \u0111i\u1ec7n.<\/p>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p tr\u00ean cung c\u1ea5p m\u1ed9t b\u1ed9 c\u00f4ng c\u1ee5 to\u00e0n di\u1ec7n cho vi\u1ec7c ph\u00e2n t\u00edch nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u, gi\u00fap c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u00e0 k\u1ef9 s\u01b0 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u0111\u1eb7c t\u00ednh v\u00e0 hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u, t\u1eeb \u0111\u00f3 c\u1ea3i ti\u1ebfn thi\u1ebft k\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ph\u00e2n t\u00edch nhi\u1ec7t cho v\u1eadt li\u1ec7u b\u1eb1ng 12 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau, cung c\u1ea5p ki\u1ebfn th\u1ee9c to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch \u0111\u00e1nh gi\u00e1 v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u.<\/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":"\n12 Ph\u01b0\u01a1ng Ph\u00e1p Ph\u00e2n T\u00edch Nhi\u1ec7t Cho V\u1eadt Li\u1ec7u<\/title>\n<meta name=\"description\" content=\"Ph\u00e2n t\u00edch nhi\u1ec7t cho v\u1eadt li\u1ec7u b\u1eb1ng 12 ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau, cung c\u1ea5p ki\u1ebfn th\u1ee9c to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch \u0111\u00e1nh gi\u00e1 v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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