{"id":43013,"date":"2024-11-21T15:28:31","date_gmt":"2024-11-21T20:28:31","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/optimizing-piezoceramic-performance-material-selection-and-processing-techniques\/"},"modified":"2025-01-21T07:25:35","modified_gmt":"2025-01-21T12:25:35","slug":"optimizing-piezoceramic-performance-material-selection-and-processing-techniques","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/optimizing-piezoceramic-performance-material-selection-and-processing-techniques\/","title":{"rendered":"T\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t g\u1ed1m \u00e1p \u0111i\u1ec7n: Ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o"},"content":{"rendered":"

V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n (piezoceramic) \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng \u0111\u1ebfn thu n\u0103ng l\u01b0\u1ee3ng v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf. Hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb n\u00e0y ph\u1ee5 thu\u1ed9c m\u1ea1nh m\u1ebd v\u00e0o \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u0169ng nh\u01b0 k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o. Vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a c\u1ea3 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 quy tr\u00ecnh x\u1eed l\u00fd l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t mong mu\u1ed1n. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt x\u1eed l\u00fd ti\u00ean ti\u1ebfn \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u00fang.<\/p>\n

L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u Piezoceramic<\/h3>\n

Hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1, bao g\u1ed3m h\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n, h\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i, t\u1ed5n th\u1ea5t \u0111i\u1ec7n m\u00f4i, nhi\u1ec7t \u0111\u1ed9 Curie v\u00e0 t\u00ednh \u1ed5n \u0111\u1ecbnh c\u01a1 h\u1ecdc. Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. V\u00ed d\u1ee5, PZT (ch\u00ec zirconat titanat) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i do h\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n cao, trong khi PVDF (polyvinylidene fluoride) l\u1ea1i ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi t\u00ednh linh ho\u1ea1t.<\/p>\n\n\n\n\n\n\n\n
V\u1eadt li\u1ec7u<\/th>\nH\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n (pC\/N)<\/th>\nH\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i<\/th>\n\u01afu \u0111i\u1ec3m<\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n
PZT<\/td>\nCao (l\u00ean \u0111\u1ebfn 700)<\/td>\nCao<\/td>\nHi\u1ec7u su\u1ea5t cao<\/td>\nCh\u1ee9a ch\u00ec, gi\u00f2n<\/td>\n<\/tr>\n
PVDF<\/td>\nTh\u1ea5p (kho\u1ea3ng 20)<\/td>\nTh\u1ea5p<\/td>\nLinh ho\u1ea1t, nh\u1eb9<\/td>\nHi\u1ec7u su\u1ea5t th\u1ea5p h\u01a1n<\/td>\n<\/tr>\n
PMN-PT<\/td>\nR\u1ea5t cao (l\u00ean \u0111\u1ebfn 1500)<\/td>\nR\u1ea5t cao<\/td>\nHi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i<\/td>\n\u0110\u1eaft, kh\u00f3 ch\u1ebf t\u1ea1o<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K\u1ef9 thu\u1eadt x\u1eed l\u00fd Piezoceramic<\/h3>\n

Quy tr\u00ecnh x\u1eed l\u00fd \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u1ea5u tr\u00fac vi m\u00f4 v\u00e0 do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n. C\u00e1c k\u1ef9 thu\u1eadt kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 thi\u00eau k\u1ebft, \u00e9p n\u00f3ng, v\u00e0 l\u1eafng \u0111\u1ecdng m\u00e0ng m\u1ecfng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o g\u1ed1m \u00e1p \u0111i\u1ec7n. <\/p>\n

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

Thi\u00eau k\u1ebft l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1eadt \u0111\u1ed9 v\u00e0 c\u1ea5u tr\u00fac vi m\u00f4 mong mu\u1ed1n. Nhi\u1ec7t \u0111\u1ed9 v\u00e0 th\u1eddi gian thi\u00eau k\u1ebft \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 do \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n.<\/p>\n

\u00c9p n\u00f3ng<\/h3>\n

\u00c9p n\u00f3ng l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt k\u1ebft h\u1ee3p \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1eadt \u0111\u1ed9 cao h\u01a1n v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc. <\/p>\n

L\u1eafng \u0111\u1ecdng m\u00e0ng m\u1ecfng<\/h3>\n

L\u1eafng \u0111\u1ecdng m\u00e0ng m\u1ecfng cho ph\u00e9p ch\u1ebf t\u1ea1o m\u00e0ng m\u1ecfng \u00e1p \u0111i\u1ec7n v\u1edbi \u0111\u1ed9 d\u00e0y v\u00e0 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c. K\u1ef9 thu\u1eadt n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c thi\u1ebft b\u1ecb vi c\u01a1 \u0111i\u1ec7n t\u1eed (MEMS).<\/p>\n

T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t th\u00f4ng qua doping v\u00e0 composite<\/h3>\n

Hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n h\u01a1n n\u1eefa b\u1eb1ng c\u00e1ch pha t\u1ea1p v\u1edbi c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c nhau ho\u1eb7c t\u1ea1o v\u1eadt li\u1ec7u composite. V\u00ed d\u1ee5, vi\u1ec7c th\u00eam c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm v\u00e0o PZT c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n h\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n v\u00e0 h\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i. Vi\u1ec7c t\u1ea1o ra v\u1eadt li\u1ec7u composite k\u1ebft h\u1ee3p g\u1ed1m \u00e1p \u0111i\u1ec7n v\u1edbi polyme c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn v\u1eadt li\u1ec7u linh ho\u1ea1t h\u01a1n v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p>\n

\u1ee8ng d\u1ee5ng trong s\u00f3ng si\u00eau \u00e2m<\/h3>\n

V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c \u1ee9ng d\u1ee5ng s\u00f3ng si\u00eau \u00e2m, bao g\u1ed3m c\u1ea3 h\u00ecnh \u1ea3nh y t\u1ebf v\u00e0 ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y. V\u00ed d\u1ee5, n\u1ebfu c\u1ea7n thi\u1ebft ph\u1ea3i nh\u1eafc \u0111\u1ebfn m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u trong b\u1ed1i c\u1ea3nh s\u00f3ng si\u00eau \u00e2m, Beijing Ultrasonic l\u00e0 m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb si\u00eau \u00e2m. Tuy nhi\u00ean, vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt x\u1eed l\u00fd ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb n\u00e0y.<\/p>\n

T\u00f3m l\u1ea1i, vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u00f2i h\u1ecfi ph\u1ea3i xem x\u00e9t c\u1ea9n th\u1eadn c\u1ea3 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt x\u1eed l\u00fd. B\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p v\u00e0 s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt x\u1eed l\u00fd ti\u00ean ti\u1ebfn, c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh mong mu\u1ed1n cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3. S\u1ef1 ph\u00e1t tri\u1ec3n li\u00ean t\u1ee5c trong l\u0129nh v\u1ef1c v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o h\u1ee9a h\u1eb9n s\u1ebd mang l\u1ea1i nh\u1eefng ti\u1ebfn b\u1ed9 h\u01a1n n\u1eefa trong hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi cho nhi\u1ec1u \u1ee9ng d\u1ee5ng.<\/p>\n","protected":false},"excerpt":{"rendered":"

V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n (piezoceramic) \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng \u0111\u1ebfn thu n\u0103ng l\u01b0\u1ee3ng v\u00e0 thi\u1ebft b\u1ecb y t\u1ebf. Hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb n\u00e0y ph\u1ee5 thu\u1ed9c m\u1ea1nh m\u1ebd v\u00e0o \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u0169ng nh\u01b0<\/p>\n","protected":false},"author":1,"featured_media":23778,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-43013","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\/43013","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=43013"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/43013\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/23778"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=43013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=43013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=43013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}