{"id":53174,"date":"2022-10-12T14:10:55","date_gmt":"2022-10-12T19:10:55","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/things-you-need-to-know-about-piezoceramic-materials\/"},"modified":"2025-01-21T07:26:17","modified_gmt":"2025-01-21T12:26:17","slug":"things-you-need-to-know-about-piezoceramic-materials","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/things-you-need-to-know-about-piezoceramic-materials\/","title":{"rendered":"Kh\u00e1m ph\u00e1 V\u1eadt li\u1ec7u \u00c1p \u0111i\u1ec7n: T\u1eeb A \u0111\u1ebfn Z"},"content":{"rendered":"<p>V\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n (piezoceramic) \u0111ang ng\u00e0y c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7, t\u1eeb c\u1ea3m bi\u1ebfn \u0111\u1ebfn thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng. Hi\u1ec3u r\u00f5 v\u1ec1 t\u00ednh ch\u1ea5t v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u00fang l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p cho b\u1ea1n nh\u1eefng ki\u1ebfn th\u1ee9c c\u1ea7n thi\u1ebft v\u1ec1 v\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n.<\/p>\n<h3>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n<\/h3>\n<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n l\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a v\u1eadt li\u1ec7u t\u1ea1o ra \u0111i\u1ec7n \u00e1p khi ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c c\u01a1 h\u1ecdc (hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n tr\u1ef1c ti\u1ebfp) v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, bi\u1ebfn \u0111\u1ed5i h\u00ecnh d\u1ea1ng khi ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec7n tr\u01b0\u1eddng (hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n ngh\u1ecbch).  Ch\u00ednh nh\u1edd hi\u1ec7u \u1ee9ng \u0111\u1eb7c bi\u1ec7t n\u00e0y m\u00e0 g\u1ed1m \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c.<\/p>\n<h3>Th\u00e0nh ph\u1ea7n v\u00e0 c\u1ea5u tr\u00fac<\/h3>\n<p>G\u1ed1m \u00e1p \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb c\u00e1c v\u1eadt li\u1ec7u g\u1ed1m \u0111a tinh th\u1ec3 nh\u01b0 zirconate titanate ch\u00ec (PZT), barium titanate (BaTiO3) v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 c\u1ee7a ch\u00fang.  C\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c quy\u1ebft \u0111\u1ecbnh t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n c\u1ee7a ch\u00fang.<\/p>\n<h3>C\u00e1c t\u00ednh ch\u1ea5t quan tr\u1ecdng<\/h3>\n<p>M\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t quan tr\u1ecdng c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>H\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n (d):<\/strong> M\u00f4 t\u1ea3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i l\u1ef1c c\u01a1 h\u1ecdc th\u00e0nh \u0111i\u1ec7n \u00e1p v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Gi\u00e1 tr\u1ecb d c\u00e0ng cao, hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n c\u00e0ng m\u1ea1nh.<\/li>\n<li><strong>H\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i (\u03b5):<\/strong>  Cho bi\u1ebft kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n<li><strong>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i (Y):<\/strong>  \u0110\u1ea1i di\u1ec7n cho \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 Curie (Tc):<\/strong> Nhi\u1ec7t \u0111\u1ed9 m\u00e0 t\u1ea1i \u0111\u00f3 v\u1eadt li\u1ec7u m\u1ea5t \u0111i t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n.<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>T\u00ednh ch\u1ea5t<\/th>\n<th>\u00dd ngh\u0129a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>H\u1ec7 s\u1ed1 \u00e1p \u0111i\u1ec7n (d)<\/td>\n<td>Kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i c\u01a1-\u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>H\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i (\u03b5)<\/td>\n<td>Kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n<\/td>\n<\/tr>\n<tr>\n<td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i (Y)<\/td>\n<td>\u0110\u1ed9 c\u1ee9ng<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec7t \u0111\u1ed9 Curie (Tc)<\/td>\n<td>Nhi\u1ec7t \u0111\u1ed9 m\u1ea5t t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n<\/h3>\n<p>G\u1ed1m \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>C\u1ea3m bi\u1ebfn:<\/strong>  \u0110o l\u01b0\u1eddng \u00e1p su\u1ea5t, gia t\u1ed1c, rung \u0111\u1ed9ng.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng:<\/strong>  \u0110i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c v\u1ecb tr\u00ed, k\u00edch th\u01b0\u1edbc.<\/li>\n<li><strong>B\u1ed9 t\u1ea1o s\u00f3ng si\u00eau \u00e2m:<\/strong>  \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y t\u1ebf, c\u00f4ng nghi\u1ec7p v\u00e0 l\u00e0m s\u1ea1ch.  N\u1ebfu c\u1ea7n thi\u1ebft b\u1ecb t\u1ea1o s\u00f3ng si\u00eau \u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao, c\u00f3 th\u1ec3 tham kh\u1ea3o s\u1ea3n ph\u1ea9m c\u1ee7a Beijing Ultrasonic.<\/li>\n<li><strong>\u0110\u00e1nh l\u1eeda:<\/strong>  T\u1ea1o ra tia l\u1eeda \u0111i\u1ec7n trong b\u1eadt l\u1eeda.<\/li>\n<li><strong>B\u1ed9 l\u1ecdc g\u1ed1m:<\/strong>  L\u1ecdc t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eed.<\/li>\n<\/ul>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t<\/h3>\n<p>Hi\u1ec7u su\u1ea5t c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m:<\/p>\n<ul>\n<li><strong>Th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u:<\/strong> C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u kh\u00e1c nhau c\u00f3 t\u00ednh ch\u1ea5t \u00e1p \u0111i\u1ec7n kh\u00e1c nhau.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong>  Nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n.<\/li>\n<li><strong>\u0110i\u1ec7n tr\u01b0\u1eddng:<\/strong> \u0110i\u1ec7n tr\u01b0\u1eddng m\u1ea1nh c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ph\u00e2n c\u1ef1c v\u00e0 l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n<li><strong>L\u1ef1c c\u01a1 h\u1ecdc:<\/strong> L\u1ef1c qu\u00e1 l\u1edbn c\u00f3 th\u1ec3 g\u00e2y ra n\u1ee9t v\u1ee1 v\u00e0 h\u01b0 h\u1ecfng v\u1eadt li\u1ec7u.<\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, v\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n s\u1edf h\u1eefu nh\u1eefng t\u00ednh ch\u1ea5t \u0111\u1eb7c bi\u1ec7t v\u00e0 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c. Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c t\u00ednh ch\u1ea5t, \u1ee9ng d\u1ee5ng v\u00e0 y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 trong c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.  Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n nh\u1eefng ki\u1ebfn th\u1ee9c c\u1ea7n thi\u1ebft v\u1ec1 v\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n (piezoceramic) \u0111ang ng\u00e0y c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7, t\u1eeb c\u1ea3m bi\u1ebfn \u0111\u1ebfn thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng. Hi\u1ec3u r\u00f5 v\u1ec1 t\u00ednh ch\u1ea5t v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ch\u00fang l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p<\/p>\n","protected":false},"author":1,"featured_media":18820,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-53174","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\/53174","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=53174"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/53174\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/18820"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=53174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=53174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=53174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}