{"id":55206,"date":"2022-06-09T02:52:44","date_gmt":"2022-06-09T07:52:44","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/piezo-ceramics-the-definition-of-tensile-strength\/"},"modified":"2025-01-21T07:25:41","modified_gmt":"2025-01-21T12:25:41","slug":"piezo-ceramics-the-definition-of-tensile-strength","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/piezo-ceramics-the-definition-of-tensile-strength\/","title":{"rendered":"\u0110\u1ecbnh ngh\u0129a \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n"},"content":{"rendered":"<p>V\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n, v\u1edbi 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, \u0111ang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb c\u1ea3m bi\u1ebfn, thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng \u0111\u1ebfn thu n\u0103ng l\u01b0\u1ee3ng.  M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n ch\u00ednh l\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o. Hi\u1ec3u r\u00f5 v\u1ec1 \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a v\u1eadt li\u1ec7u n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<h3>\u0110\u1ecbnh ngh\u0129a \u0110\u1ed9 B\u1ec1n K\u00e9o<\/h3>\n<p>\u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 \u1ee9ng su\u1ea5t k\u00e9o t\u1ed1i \u0111a m\u00e0 v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi b\u1ecb g\u00e3y ho\u1eb7c n\u1ee9t.  Gi\u00e1 tr\u1ecb n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng \u0111\u01a1n v\u1ecb Pascal (Pa) ho\u1eb7c Megapascal (MPa).  \u0110\u1ed9 b\u1ec1n k\u00e9o ph\u1ea3n \u00e1nh kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c k\u00e9o c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc t\u1ed5ng th\u1ec3 c\u1ee7a n\u00f3.<\/p>\n<h3>C\u00e1c Y\u1ebfu T\u1ed1 \u1ea2nh H\u01b0\u1edfng \u0110\u1ebfn \u0110\u1ed9 B\u1ec1n K\u00e9o<\/h3>\n<p>\u0110\u1ed9 b\u1ec1n k\u00e9o 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 g\u1ed1m \u00e1p \u0111i\u1ec7n kh\u00e1c nhau (v\u00ed d\u1ee5: PZT, BaTiO3) c\u00f3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 c\u1ea5u tr\u00fac tinh th\u1ec3 kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111\u1ed9 b\u1ec1n k\u00e9o.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc h\u1ea1t:<\/strong> K\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a g\u1ed1m c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n k\u00e9o. G\u1ed1m c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf h\u01a1n th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n.<\/li>\n<li><strong>L\u1ed7 x\u1ed1p:<\/strong> S\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a l\u1ed7 x\u1ed1p trong v\u1eadt li\u1ec7u l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n k\u00e9o.<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> \u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf t\u1ea1o:<\/strong> Quy tr\u00ecnh ch\u1ebf t\u1ea1o, bao g\u1ed3m qu\u00e1 tr\u00ecnh nung k\u1ebft v\u00e0 gia c\u00f4ng, c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n<\/ul>\n<h3>Ph\u01b0\u01a1ng Ph\u00e1p \u0110o \u0110\u1ed9 B\u1ec1n K\u00e9o<\/h3>\n<p>\u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed k\u00e9o. Trong th\u1eed nghi\u1ec7m n\u00e0y, m\u1ed9t m\u1eabu v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c k\u00e9o c\u0103ng v\u1edbi m\u1ed9t l\u1ef1c t\u0103ng d\u1ea7n cho \u0111\u1ebfn khi b\u1ecb g\u00e3y.  \u1ee8ng su\u1ea5t k\u00e9o t\u1ed1i \u0111a m\u00e0 m\u1eabu v\u1eadt li\u1ec7u ch\u1ecbu \u0111\u01b0\u1ee3c tr\u01b0\u1edbc khi g\u00e3y ch\u00ednh l\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o.<\/p>\n<h3>So S\u00e1nh \u0110\u1ed9 B\u1ec1n K\u00e9o c\u1ee7a M\u1ed9t S\u1ed1 Lo\u1ea1i G\u1ed1m \u00c1p \u0110i\u1ec7n<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i G\u1ed1m<\/th>\n<th>\u0110\u1ed9 B\u1ec1n K\u00e9o (MPa)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PZT<\/td>\n<td>50 &#8211; 100<\/td>\n<\/tr>\n<tr>\n<td>BaTiO3<\/td>\n<td>30 &#8211; 70<\/td>\n<\/tr>\n<tr>\n<td>PVDF<\/td>\n<td>20 &#8211; 40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>L\u01b0u \u00fd: \u0110\u00e2y ch\u1ec9 l\u00e0 c\u00e1c gi\u00e1 tr\u1ecb tham kh\u1ea3o, \u0111\u1ed9 b\u1ec1n k\u00e9o th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 \u0111\u00e3 n\u00eau \u1edf tr\u00ean.<\/em><\/p>\n<h3>\u1ee8ng D\u1ee5ng c\u1ee7a G\u1ed1m \u00c1p \u0110i\u1ec7n trong C\u00e1c Thi\u1ebft B\u1ecb Si\u00eau \u00c2m<\/h3>\n<p>G\u1ed1m \u00e1p \u0111i\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft b\u1ecb si\u00eau \u00e2m, v\u00ed d\u1ee5 nh\u01b0 \u0111\u1ea7u d\u00f2 si\u00eau \u00e2m. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p,  vi\u1ec7c l\u1ef1a ch\u1ecdn g\u1ed1m \u00e1p \u0111i\u1ec7n c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a thi\u1ebft b\u1ecb.  V\u00ed d\u1ee5, trong c\u00e1c \u1ee9ng d\u1ee5ng si\u00eau \u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao, v\u1eadt li\u1ec7u g\u1ed1m c\u1ea7n c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc l\u1edbn.  N\u1ebfu c\u1ea7n thi\u1ebft ph\u1ea3i \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u c\u1ee5 th\u1ec3 trong ng\u1eef c\u1ea3nh si\u00eau \u00e2m, Beijing Ultrasonic c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t.<\/p>\n<p>T\u00f3m l\u1ea1i, \u0111\u1ed9 b\u1ec1n k\u00e9o l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng c\u1ee7a g\u1ed1m \u00e1p \u0111i\u1ec7n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf.  Vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 \u0111\u1ecbnh ngh\u0129a, c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111o \u0111\u1ed9 b\u1ec1n k\u00e9o l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng g\u1ed1m \u00e1p \u0111i\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.  \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao, ch\u1eb3ng h\u1ea1n nh\u01b0 thi\u1ebft b\u1ecb si\u00eau \u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u1eadt li\u1ec7u g\u1ed1m \u00e1p \u0111i\u1ec7n, v\u1edbi 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, \u0111ang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb c\u1ea3m bi\u1ebfn, thi\u1ebft b\u1ecb truy\u1ec1n \u0111\u1ed9ng \u0111\u1ebfn thu n\u0103ng l\u01b0\u1ee3ng. M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9<\/p>\n","protected":false},"author":1,"featured_media":611,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-55206","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\/55206","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=55206"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/55206\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/611"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=55206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=55206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=55206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}