{"id":47732,"date":"2023-04-22T00:00:37","date_gmt":"2023-04-22T05:00:37","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-piezoelectric-ceramic\/"},"modified":"2025-01-21T07:20:12","modified_gmt":"2025-01-21T12:20:12","slug":"how-to-make-piezoelectric-ceramic","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-piezoelectric-ceramic\/","title":{"rendered":"Ch\u1ebf t\u1ea1o g\u1ed1m \u00e1p \u0111i\u1ec7n: H\u01b0\u1edbng d\u1eabn chi ti\u1ebft"},"content":{"rendered":"

G\u1ed1m \u00e1p \u0111i\u1ec7n l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. \u1ee8ng d\u1ee5ng c\u1ee7a ch\u00fang tr\u1ea3i r\u1ed9ng t\u1eeb c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed d\u00e2n d\u1ee5ng nh\u01b0 b\u1eadt l\u1eeda, c\u1ea3m bi\u1ebfn, \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb y t\u1ebf, c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p h\u01a1n. Vi\u1ec7c ch\u1ebf t\u1ea1o g\u1ed1m \u00e1p \u0111i\u1ec7n \u0111\u00f2i h\u1ecfi quy tr\u00ecnh nghi\u00eam ng\u1eb7t v\u00e0 ki\u1ebfn th\u1ee9c chuy\u00ean m\u00f4n. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c b\u01b0\u1edbc c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ea1o ra lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t n\u00e0y.<\/p>\n

Ch\u1ecdn nguy\u00ean li\u1ec7u v\u00e0 ph\u1ed1i tr\u1ed9n<\/h3>\n

B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o g\u1ed1m \u00e1p \u0111i\u1ec7n l\u00e0 l\u1ef1a ch\u1ecdn nguy\u00ean li\u1ec7u ph\u00f9 h\u1ee3p. C\u00e1c v\u1eadt li\u1ec7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m oxit kim lo\u1ea1i nh\u01b0 ch\u00ec titanat (PbTiO3), ch\u00ec zirconat (PbZrO3) v\u00e0 bari titanat (BaTiO3). T\u1ef7 l\u1ec7 ph\u1ed1i tr\u1ed9n c\u1ee7a c\u00e1c oxit n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. Vi\u1ec7c c\u00e2n \u0111o ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed3ng nh\u1ea5t c\u00e1c nguy\u00ean li\u1ec7u l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n

Nghi\u1ec1n v\u00e0 \u0111\u1ed3ng nh\u1ea5t h\u1ed7n h\u1ee3p<\/h3>\n

Sau khi ch\u1ecdn v\u00e0 c\u00e2n \u0111o c\u00e1c nguy\u00ean li\u1ec7u, ch\u00fang \u0111\u01b0\u1ee3c nghi\u1ec1n th\u00e0nh b\u1ed9t m\u1ecbn. Qu\u00e1 tr\u00ecnh nghi\u1ec1n n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau nh\u01b0 nghi\u1ec1n bi ho\u1eb7c nghi\u1ec1n rung. M\u1ee5c \u0111\u00edch l\u00e0 t\u1ea1o ra h\u1ed7n h\u1ee3p b\u1ed9t c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u, gi\u00fap cho qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft di\u1ec5n ra hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

T\u1ea1o h\u00ecnh s\u1ea3n ph\u1ea9m<\/h3>\n

B\u1ed9t g\u1ed1m sau khi nghi\u1ec1n \u0111\u01b0\u1ee3c tr\u1ed9n v\u1edbi ch\u1ea5t k\u1ebft d\u00ednh v\u00e0 t\u1ea1o h\u00ecnh th\u00e0nh c\u00e1c s\u1ea3n ph\u1ea9m mong mu\u1ed1n. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o h\u00ecnh ph\u1ed5 bi\u1ebfn bao g\u1ed3m \u00e9p kh\u00f4, \u00e9p \u0111\u1eb3ng t\u0129nh v\u00e0 \u0111\u00fac. H\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a s\u1ea3n ph\u1ea9m ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>\n

Thi\u00eau k\u1ebft<\/h3>\n

\u0110\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t trong qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o g\u1ed1m \u00e1p \u0111i\u1ec7n. S\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao (th\u01b0\u1eddng t\u1eeb 1200\u00b0C \u0111\u1ebfn 1500\u00b0C) trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh. Qu\u00e1 tr\u00ecnh thi\u00eau k\u1ebft gi\u00fap li\u00ean k\u1ebft c\u00e1c h\u1ea1t b\u1ed9t g\u1ed1m l\u1ea1i v\u1edbi nhau, t\u1ea1o th\u00e0nh m\u1ed9t kh\u1ed1i v\u1eadt li\u1ec7u \u0111\u1eb7c, c\u1ee9ng v\u00e0 c\u00f3 t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n.<\/p>\n

Ph\u00e2n c\u1ef1c<\/h3>\n

Sau khi thi\u00eau k\u1ebft, g\u1ed1m \u00e1p \u0111i\u1ec7n c\u1ea7n \u0111\u01b0\u1ee3c ph\u00e2n c\u1ef1c \u0111\u1ec3 th\u1ec3 hi\u1ec7n t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n. Qu\u00e1 tr\u00ecnh ph\u00e2n c\u1ef1c \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch \u0111\u1eb7t s\u1ea3n ph\u1ea9m trong m\u1ed9t \u0111i\u1ec7n tr\u01b0\u1eddng m\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 cao. \u0110i\u1ec7n tr\u01b0\u1eddng n\u00e0y s\u1ebd s\u1eafp x\u1ebfp c\u00e1c l\u01b0\u1ee1ng c\u1ef1c b\u00ean trong v\u1eadt li\u1ec7u, t\u1ea1o ra hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n.<\/p>\n\n\n\n\n\n\n\n
Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/th>\nPbTiO3<\/th>\nPbZrO3<\/th>\nBaTiO3<\/th>\n<\/tr>\n<\/thead>\n
Nhi\u1ec7t \u0111\u1ed9 Curie (\u00b0C)<\/td>\n460<\/td>\n330<\/td>\n120<\/td>\n<\/tr>\n
H\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n (pC\/N)<\/td>\nCao<\/td>\nTrung b\u00ecnh<\/td>\nCao<\/td>\n<\/tr>\n
\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/td>\nT\u1ed1t<\/td>\nTrung b\u00ecnh<\/td>\nK\u00e9m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n

S\u1ea3n ph\u1ea9m g\u1ed1m \u00e1p \u0111i\u1ec7n sau khi ph\u00e2n c\u1ef1c s\u1ebd \u0111\u01b0\u1ee3c ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt. C\u00e1c th\u00f4ng s\u1ed1 \u0111\u01b0\u1ee3c ki\u1ec3m tra bao g\u1ed3m h\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n, h\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i, v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc. V\u00ed d\u1ee5, n\u1ebfu s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong l\u0129nh v\u1ef1c si\u00eau \u00e2m, vi\u1ec7c ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd li\u00ean quan \u0111\u1ebfn t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng v\u00e0 hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng. N\u1ebfu c\u1ea7n thi\u1ebft ph\u1ea3i nh\u1eafc \u0111\u1ebfn m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u trong ng\u1eef c\u1ea3nh n\u00e0y, c\u00f3 th\u1ec3 xem x\u00e9t \u0111\u1ebfn Beijing Ultrasonic nh\u01b0 m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb si\u00eau \u00e2m.<\/p>\n

Vi\u1ec7c ch\u1ebf t\u1ea1o g\u1ed1m \u00e1p \u0111i\u1ec7n l\u00e0 m\u1ed9t quy tr\u00ecnh ph\u1ee9c t\u1ea1p, \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt trong t\u1eebng b\u01b0\u1edbc. T\u1eeb vi\u1ec7c l\u1ef1a ch\u1ecdn nguy\u00ean li\u1ec7u, ph\u1ed1i tr\u1ed9n, nghi\u1ec1n, t\u1ea1o h\u00ecnh, thi\u00eau k\u1ebft v\u00e0 ph\u00e2n c\u1ef1c, m\u1ed7i giai \u0111o\u1ea1n \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u1ea1o ra s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng \u0111a d\u1ea1ng. Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 quy tr\u00ecnh s\u1ea3n xu\u1ea5t g\u1ed1m \u00e1p \u0111i\u1ec7n v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"

G\u1ed1m \u00e1p \u0111i\u1ec7n l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. \u1ee8ng d\u1ee5ng c\u1ee7a ch\u00fang tr\u1ea3i r\u1ed9ng t\u1eeb c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed d\u00e2n d\u1ee5ng nh\u01b0 b\u1eadt l\u1eeda, c\u1ea3m bi\u1ebfn, \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb y t\u1ebf, c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p h\u01a1n.<\/p>\n","protected":false},"author":1,"featured_media":23772,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-47732","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/comments?post=47732"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/47732\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/23772"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=47732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=47732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=47732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}