{"id":28409,"date":"2019-06-07T13:06:00","date_gmt":"2019-06-07T06:06:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=28409"},"modified":"2021-10-03T16:07:05","modified_gmt":"2021-10-03T09:07:05","slug":"vat-lieu-bot-co-the-chan-dan-hieu-qua-nhu-ao-giap-thep","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/vat-lieu-bot-co-the-chan-dan-hieu-qua-nhu-ao-giap-thep\/","title":{"rendered":"V\u1eadt li\u1ec7u b\u1ecdt c\u00f3 th\u1ec3 ch\u1eb7n \u0111\u1ea1n hi\u1ec7u qu\u1ea3 nh\u01b0 \u00e1o gi\u00e1p th\u00e9p"},"content":{"rendered":"\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u M\u1ef9 t\u1ea1o ra lo\u1ea1i b\u1ecdt kim lo\u1ea1i c\u00f3 th\u1ec3 ch\u1ed1ng \u0111\u1ea1n 12,7 mm d\u00f9 ch\u1ec9 n\u1eb7ng b\u1eb1ng g\u1ea7n m\u1ed9t n\u1eeda so v\u1edbi th\u00e9p.<\/p>\n\n\n\n

Th\u1eed nghi\u1ec7m c\u1ee7a nh\u00f3m nghi\u00ean c\u1ee9u \u1edf \u0110\u1ea1i h\u1ecdc North Carolina cho th\u1ea5y m\u1ed9t lo\u1ea1i b\u1ecdt si\u00eau nh\u1eb9 t\u1ea1o th\u00e0nh t\u1eeb nh\u1eefng kh\u1ed1i c\u1ea7u kim lo\u1ea1i r\u1ed7ng c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c va ch\u1ea1m t\u1eeb \u0111\u1ea1n 12,7 mm, lo\u1ea1i \u0111\u1ea1n d\u00f9ng cho s\u00fang m\u00e1y v\u00e0 s\u00fang b\u1eafn t\u1ec9a. D\u00f9 ch\u1ec9 n\u1eb7ng b\u1eb1ng m\u1ed9t n\u1eeda \u00e1o gi\u00e1p th\u00e9p th\u00f4ng th\u01b0\u1eddng, v\u1eadt li\u1ec7u c\u00f3 t\u00ean b\u1ecdt kim lo\u1ea1i t\u1ed5ng h\u1ee3p (CMF) c\u00f3 kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 hi\u1ec7u qu\u1ea3 ngay c\u1ea3 khi th\u1eed nghi\u1ec7m v\u1edbi \u0111\u1ea1n xuy\u00ean gi\u00e1p.<\/p>\n\n\n\n

“\u00c1o gi\u00e1p CMF ch\u1ec9 n\u1eb7ng b\u1eb1ng g\u1ea7n m\u1ed9t n\u1eeda so v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a \u00e1o gi\u00e1p b\u1eb1ng th\u00e9p c\u00e1n \u0111\u1ed3ng nh\u1ea5t v\u1edbi hi\u1ec7u qu\u1ea3 b\u1ea3o v\u1ec7 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. N\u00f3i c\u00e1ch kh\u00e1c, ch\u00fang ta c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 tr\u1ecdng l\u01b0\u1ee3ng cho xe qu\u00e2n s\u1ef1 v\u00e0 ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng t\u1edbi c\u00f4ng d\u1ee5ng b\u1ea3o v\u1ec7”, Afsaneh Rabiei, k\u1ef9 s\u01b0 ki\u00eam nh\u00e0 khoa h\u1ecdc v\u1eadt li\u1ec7u \u1edf \u0110\u1ea1i h\u1ecdc North Carolina (NCSU), cho bi\u1ebft.<\/p>\n\n\n\n

Rabiei tr\u1edf th\u00e0nh tr\u01b0\u1edfng nh\u00f3m ph\u00e1t tri\u1ec3n b\u1ecdt kim lo\u1ea1i t\u1ed5ng h\u1ee3p \u1edf NSCU c\u00e1ch \u0111\u00e2y 15 n\u0103m. Trong ph\u00f2ng th\u00ed nghi\u1ec7m, Rabiei v\u00e0 c\u1ed9ng s\u1ef1 d\u00e0nh nhi\u1ec1u th\u1eddi gian th\u00ed nghi\u1ec7m \u0111\u1ec3 kh\u00e1m ph\u00e1 nh\u1eefng ti\u1ec1m n\u0103ng c\u1ee7a b\u1ecdt kim lo\u1ea1i.<\/p>\n\n\n\n

\"B\u1ecdt
B\u1ecdt kim lo\u1ea1i t\u1ed5ng h\u1ee3p c\u00f3 nhi\u1ec1u l\u1ed7 r\u1ed7ng tr\u00ean b\u1ec1 m\u1eb7t. \u1ea2nh: Science Alert.<\/em><\/figcaption><\/figure><\/div>\n\n\n\n

CMF \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb nh\u1eefng t\u1ea5m kim lo\u1ea1i bao g\u1ed3m nh\u00f4m v\u00e0 th\u00e9p, b\u1ec1 m\u1eb7t c\u00f3 nhi\u1ec1u t\u00fai kh\u00ed r\u1ed7ng gi\u1ed1ng nh\u01b0 b\u1ecdt x\u1ed1p. Trong nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00f3, nh\u00f3m c\u1ee7a Rabiei ch\u1ee9ng minh CMF c\u00f3 th\u1ec3 ch\u1eb7n \u0111\u1ea1n c\u1ee1 v\u1eeba, v\u1ee5 n\u1ed5 m\u1ea1nh, ch\u1eafn l\u1eeda, h\u01a1i n\u00f3ng c\u00f9ng nhi\u1ec1u lo\u1ea1i tia v\u00e0 b\u1ee9c x\u1ea1.<\/p>\n\n\n\n

\u1ede nghi\u00ean c\u1ee9u m\u1edbi, h\u1ecd mu\u1ed1n xem x\u00e9t c\u00e1ch CMF h\u1ea5p th\u1ee5 l\u1ef1c va ch\u1ea1m v\u1edbi \u0111\u1ea1n 12,7 mm. Th\u00ed nghi\u1ec7m c\u1ee7a h\u1ecd bao g\u1ed3m b\u1eafn nhi\u1ec1u l\u01b0\u1ee3t \u0111\u1ea1n 12,7 mm v\u00e0o CMF \u1edf t\u1ed1c \u0111\u1ed9 t\u1eeb 500 m\/gi\u00e2y \u0111\u1ebfn 885 m\/gi\u00e2y. CMF \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m l\u00f5i \u00e1o gi\u00e1p, bao ph\u1ee7 b\u1edfi t\u1ea5m che b\u1eb1ng s\u1ee9 \u1edf m\u1eb7t tr\u01b0\u1edbc v\u00e0 t\u1ea5m nh\u00f4m m\u1ecfng \u1edf m\u1eb7t sau. K\u1ebft qu\u1ea3 cho th\u1ea5y l\u1edbp CMF h\u1ea5p th\u1ee5 68 – 78% \u0111\u1ed9ng n\u0103ng c\u1ee7a \u0111\u1ea1n xuy\u00ean gi\u00e1p v\u00e0 ng\u0103n \u0111\u1ea1n xuy\u00ean qua \u1edf t\u1ed1c \u0111\u1ed9 l\u00ean t\u1edbi 819 m\/gi\u00e2y. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o tr\u00ean t\u1ea1p ch\u00ed Composite Structures h\u00f4m 28\/5.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u M\u1ef9 t\u1ea1o ra lo\u1ea1i b\u1ecdt kim lo\u1ea1i c\u00f3 th\u1ec3 ch\u1ed1ng \u0111\u1ea1n 12,7 mm d\u00f9 ch\u1ec9 n\u1eb7ng b\u1eb1ng g\u1ea7n m\u1ed9t n\u1eeda so v\u1edbi th\u00e9p. Th\u1eed nghi\u1ec7m c\u1ee7a nh\u00f3m nghi\u00ean c\u1ee9u \u1edf \u0110\u1ea1i h\u1ecdc North Carolina cho th\u1ea5y m\u1ed9t lo\u1ea1i b\u1ecdt si\u00eau nh\u1eb9 t\u1ea1o th\u00e0nh t\u1eeb nh\u1eefng kh\u1ed1i c\u1ea7u kim lo\u1ea1i r\u1ed7ng c\u00f3 […]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-28409","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=28409"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28409\/revisions"}],"predecessor-version":[{"id":28410,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/28409\/revisions\/28410"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=28409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=28409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=28409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}