{"id":53286,"date":"2022-10-09T09:04:44","date_gmt":"2022-10-09T14:04:44","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/all-about-piezoelectric-materials\/"},"modified":"2025-01-21T07:05:44","modified_gmt":"2025-01-21T12:05:44","slug":"all-about-piezoelectric-materials","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/all-about-piezoelectric-materials\/","title":{"rendered":"V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n: Kh\u00e1m ph\u00e1 t\u00ednh ch\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd k\u1ef3 di\u1ec7u, \u0111\u00e3 v\u00e0 \u0111ang \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i. Kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh \u0111i\u1ec7n n\u0103ng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng, t\u1eeb nh\u1eefng thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf g\u1ecdn \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p ph\u1ee9c t\u1ea1p. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o t\u00ecm hi\u1ec3u v\u1ec1 v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n, t\u1eeb nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, ph\u00e2n lo\u1ea1i, \u1ee9ng d\u1ee5ng cho \u0111\u1ebfn nh\u1eefng tri\u1ec3n v\u1ecdng ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/h3>\n<p>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n s\u1edf h\u1eefu c\u1ea5u tr\u00fac tinh th\u1ec3 \u0111\u1eb7c bi\u1ec7t, cho ph\u00e9p ch\u00fang 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). Ng\u01b0\u1ee3c l\u1ea1i, khi \u0111\u1eb7t d\u01b0\u1edbi \u0111i\u1ec7n tr\u01b0\u1eddng, v\u1eadt li\u1ec7u n\u00e0y s\u1ebd bi\u1ebfn \u0111\u1ed5i h\u00ecnh d\u1ea1ng (hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n ngh\u1ecbch \u0111\u1ea3o).  S\u1ef1 bi\u1ebfn \u0111\u1ed5i n\u00e0y, tuy nh\u1ecf, l\u1ea1i v\u00f4 c\u00f9ng h\u1eefu \u00edch trong nhi\u1ec1u \u1ee9ng d\u1ee5ng.<\/p>\n<h3>Ph\u00e2n lo\u1ea1i v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/h3>\n<p>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u lo\u1ea1i, d\u1ef1a tr\u00ean c\u1ea5u tr\u00fac v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a ch\u00fang. M\u1ed9t s\u1ed1 lo\u1ea1i ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i v\u1eadt li\u1ec7u<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<th>V\u00ed d\u1ee5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>G\u1ed1m \u00e1p \u0111i\u1ec7n (PZT)<\/td>\n<td>Gi\u00e1 th\u00e0nh th\u1ea5p, hi\u1ec7u su\u1ea5t cao<\/td>\n<td>\u0110\u1ed9 gi\u00f2n cao<\/td>\n<td>Lead zirconate titanate<\/td>\n<\/tr>\n<tr>\n<td>Tinh th\u1ec3 \u0111\u01a1n<\/td>\n<td>\u0110\u1ed9 nh\u1ea1y cao, \u1ed5n \u0111\u1ecbnh<\/td>\n<td>Gi\u00e1 th\u00e0nh cao<\/td>\n<td>Quartz<\/td>\n<\/tr>\n<tr>\n<td>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n polyme<\/td>\n<td>Linh ho\u1ea1t, d\u1ec5 gia c\u00f4ng<\/td>\n<td>Hi\u1ec7u su\u1ea5t th\u1ea5p h\u01a1n g\u1ed1m<\/td>\n<td>PVDF<\/td>\n<\/tr>\n<tr>\n<td>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n composite<\/td>\n<td>K\u1ebft h\u1ee3p \u01b0u \u0111i\u1ec3m c\u1ee7a c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u<\/td>\n<td>Quy tr\u00ecnh ch\u1ebf t\u1ea1o ph\u1ee9c t\u1ea1p<\/td>\n<td>PZT\/polymer<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ee8ng d\u1ee5ng c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n<\/h3>\n<p>V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau:<\/p>\n<ul>\n<li><strong>C\u1ea3m bi\u1ebfn:<\/strong>  T\u1eeb c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t, gia t\u1ed1c, \u0111\u1ebfn c\u1ea3m bi\u1ebfn rung \u0111\u1ed9ng, v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111o l\u01b0\u1eddng v\u00e0 gi\u00e1m s\u00e1t c\u00e1c th\u00f4ng s\u1ed1 v\u1eadt l\u00fd.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng:<\/strong>  Kh\u1ea3 n\u0103ng bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n n\u0103ng th\u00e0nh chuy\u1ec3n \u0111\u1ed9ng c\u01a1 h\u1ecdc \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 m\u00e1y in phun m\u1ef1c, \u0111\u1ed9ng c\u01a1 si\u00eau \u00e2m, v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb t\u1ea1o n\u0103ng l\u01b0\u1ee3ng:<\/strong>  V\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 thu ho\u1ea1ch n\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u00e1c ngu\u1ed3n rung \u0111\u1ed9ng, \u00e1p su\u1ea5t, ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng, m\u1edf ra ti\u1ec1m n\u0103ng cho c\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng xanh v\u00e0 t\u1ef1 duy tr\u00ec.<\/li>\n<li><strong>Y t\u1ebf:<\/strong>  \u1ee8ng d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb si\u00eau \u00e2m ch\u1ea9n \u0111o\u00e1n h\u00ecnh \u1ea3nh, m\u00e1y si\u00eau \u00e2m \u0111i\u1ec1u tr\u1ecb, v\u00e0 c\u00e1c thi\u1ebft b\u1ecb theo d\u00f5i s\u1ee9c kh\u1ecfe. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p li\u00ean quan \u0111\u1ebfn si\u00eau \u00e2m, c\u00e1c h\u00e3ng nh\u01b0 Beijing Ultrasonic cung c\u1ea5p thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng.<\/li>\n<li><strong>\u0110o l\u01b0\u1eddng kh\u00f4ng ph\u00e1 h\u1ee7y:<\/strong>  S\u1eed d\u1ee5ng s\u00f3ng si\u00eau \u00e2m t\u1ea1o ra b\u1edfi v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u1ec3 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ph\u00e1t hi\u1ec7n khuy\u1ebft t\u1eadt trong c\u00e1c v\u1eadt li\u1ec7u v\u00e0 c\u1ea5u tr\u00fac.<\/li>\n<\/ul>\n<h3>Tri\u1ec3n v\u1ecdng ph\u00e1t tri\u1ec3n<\/h3>\n<p>Nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n v\u1eabn \u0111ang ti\u1ebfp t\u1ee5c, h\u01b0\u1edbng t\u1edbi vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t, \u0111\u1ed9 b\u1ec1n, v\u00e0 m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng.  Vi\u1ec7c t\u00ecm ki\u1ebfm c\u00e1c v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n m\u1edbi, th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00f3 hi\u1ec7u su\u1ea5t cao h\u01a1n \u0111ang l\u00e0 m\u1ed9t h\u01b0\u1edbng \u0111i \u0111\u1ea7y h\u1ee9a h\u1eb9n.<\/p>\n<p>T\u00f3m l\u1ea1i, v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n v\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o c\u1ee7a m\u00ecnh \u0111\u00e3 v\u00e0 \u0111ang tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i.  T\u1eeb nh\u1eefng \u1ee9ng d\u1ee5ng quen thu\u1ed9c \u0111\u1ebfn nh\u1eefng c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn, v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n h\u1ee9a h\u1eb9n s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u00f3ng g\u00f3p v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc c\u00f4ng ngh\u1ec7 v\u00e0 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c s\u1ed1ng con ng\u01b0\u1eddi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec7u \u1ee9ng \u00e1p \u0111i\u1ec7n, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd k\u1ef3 di\u1ec7u, \u0111\u00e3 v\u00e0 \u0111ang \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i. Kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh \u0111i\u1ec7n n\u0103ng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i c\u1ee7a v\u1eadt li\u1ec7u \u00e1p \u0111i\u1ec7n \u0111\u00e3 m\u1edf ra c\u00e1nh c\u1eeda cho v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng, t\u1eeb nh\u1eefng<\/p>\n","protected":false},"author":1,"featured_media":4848,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-53286","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\/53286","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=53286"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/53286\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/4848"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=53286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=53286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=53286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}