{"id":1848,"date":"2025-06-24T08:52:13","date_gmt":"2025-06-24T05:52:13","guid":{"rendered":"https:\/\/www.defencemetal.com\/?p=1848"},"modified":"2026-09-15T15:16:41","modified_gmt":"2026-09-15T12:16:41","slug":"kovar-1-3981-astm-f15","status":"publish","type":"post","link":"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/24\/kovar-1-3981-astm-f15\/","title":{"rendered":"KOVAR \/ 1.3981 \/ ASTM F15"},"content":{"rendered":"<p><!-- dm-urun-link --><\/p>\n<div style=\"border:1px solid #d7dfe4;border-left:3px solid #DD3333;background:#F7FAFB;padding:11px 15px;margin:0 0 20px;font-size:14px;line-height:1.55\"><strong style=\"color:#12303f\">Kovar tedarik ediyoruz.<\/strong> \u00d6l\u00e7\u00fc, standart kar\u015f\u0131l\u0131klar\u0131, stok ve teklif i\u00e7in <a href=\"https:\/\/www.defencemetal.com\/index.php\/kovar\/\"><strong>Kovar \u00fcr\u00fcn sayfas\u0131na<\/strong><\/a> g\u00f6z at\u0131n.<\/div>\n<p><!-- \/dm-urun-link --><\/p>\n<h3><b>Kovar (UNS K94610 \/ ASTM F15): Cam-Metal Uyumunda Termal Genle\u015fme Kontroll\u00fc Ala\u015f\u0131m<\/b><\/h3>\n<h3><b>Ala\u015f\u0131m Tan\u0131m\u0131 ve Kimyasal Kompozisyon<\/b><\/h3>\n<p class=\"p3\"><span class=\"s2\"><b>Kovar<\/b><\/span>, termal genle\u015fme katsay\u0131s\u0131 \u00f6zel olarak kontrol edilmi\u015f, nikel-demir-kobalt esasl\u0131 bir ala\u015f\u0131md\u0131r. Cam ve seramik malzemelerle hermetik (gaz s\u0131zd\u0131rmaz) s\u0131zd\u0131rmazl\u0131k yap\u0131lmas\u0131 gereken uygulamalarda kullan\u0131l\u0131r. Ala\u015f\u0131m, ba\u015fta <a href=\"https:\/\/en.wikipedia.org\/wiki\/Borosilicate_glass\">borosilikat cam<\/a> olmak \u00fczere \u00e7e\u015fitli seramiklerle benzer genle\u015fme katsay\u0131s\u0131na sahiptir.<\/p>\n<p class=\"p3\">Kovar\u2019\u0131n <span class=\"s2\"><b>kimyasal bile\u015fimi<\/b><\/span> a\u015fa\u011f\u0131daki \u015fekildedir:<\/p>\n<ul>\n<li class=\"p1\"><b>Demir (Fe)<\/b><span class=\"s1\">: Bakiye<\/span><\/li>\n<li class=\"p1\"><b>Nikel (Ni)<\/b><span class=\"s1\">: %29<\/span><\/li>\n<li class=\"p1\"><b>Kobalt (Co)<\/b><span class=\"s1\">: %17<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Manganez (Mn)<\/b><\/span>: %0,3 maksimum<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Silisyum (Si)<\/b><\/span>: %0,2 maksimum<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Karbon (C)<\/b><\/span>: %0,04 maksimum<\/li>\n<\/ul>\n<p class=\"p3\">Bu ala\u015f\u0131m, \u00f6zellikle <span class=\"s2\"><b>20\u00b0C\u2013400\u00b0C<\/b><\/span> aral\u0131\u011f\u0131nda sabit bir termal genle\u015fme katsay\u0131s\u0131 sunacak \u015fekilde form\u00fcle edilmi\u015ftir. Bu \u00f6zellik, cam veya seramik ile e\u015fle\u015fmesini sa\u011flayarak s\u0131zd\u0131rmazl\u0131k i\u00e7in gerekli olan <span class=\"s2\"><b>termomekanik uyumu<\/b><\/span> m\u00fcmk\u00fcn k\u0131lar.<\/p>\n<hr \/>\n<h3><b>KOVAR Standartlar ve Sertifikasyonlar<\/b><\/h3>\n<p class=\"p3\">Kovar ala\u015f\u0131m\u0131 bir\u00e7ok end\u00fcstriyel ve askeri standartta tan\u0131mlanm\u0131\u015ft\u0131r. En yayg\u0131n uluslararas\u0131 spesifikasyonlar \u015funlard\u0131r:<\/p>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>ASTM F15<\/b><\/span> \u2013 Hermetik cam-muhafaza ba\u011flant\u0131lar\u0131 i\u00e7in ala\u015f\u0131m tan\u0131m\u0131<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>UNS K94610<\/b><\/span> \u2013 Unified Numbering System kodu<\/li>\n<li class=\"p1\"><b>DIN 1.3981 \/ W.Nr. 1.3981<\/b><\/li>\n<li class=\"p1\"><b><\/b><b>MIL-I-23011 Class 1<\/b><\/li>\n<li class=\"p1\"><b><\/b><b>SAE AMS I-23011<\/b><\/li>\n<li class=\"p1\"><b><\/b><b>AFNOR-NF A54-301<\/b><\/li>\n<li class=\"p1\"><b><\/b><b>ISO 4829-1<\/b><\/li>\n<\/ul>\n<p class=\"p3\">Bu standartlar, Kovar ala\u015f\u0131m\u0131n\u0131n hem <span class=\"s2\"><b>kimyasal safl\u0131\u011f\u0131n\u0131<\/b><\/span>, hem de <span class=\"s2\"><b>mekanik davran\u0131\u015f\u0131n\u0131<\/b><\/span> garanti alt\u0131na almak amac\u0131yla kullan\u0131l\u0131r. \u00d6zellikle ASTM F15, elektronik kaps\u00fclleme i\u015flemlerinde referans kabul edilen en \u00f6nemli normdur.<\/p>\n<hr \/>\n<h3><b>KOVAR Ticari Adlar ve E\u015fde\u011fer Malzemeler<\/b><\/h3>\n<ul>\n<li class=\"p1\"><span class=\"s1\"><b>Kovar\u00ae<\/b><\/span> \u2013 Carpenter Technology ve di\u011fer \u00fcreticilerin tescilli markas\u0131<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Fernico<\/b><\/span>, <span class=\"s1\"><b>Rodar<\/b><\/span>, <span class=\"s1\"><b>Dilver P<\/b><\/span> \u2013 Avrupa ve Asya\u2019da kullan\u0131lan e\u015fde\u011fer ticari isimler<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Nilo K<\/b><\/span> \u2013 Special Metals markas\u0131<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>Alloy 29-17<\/b><\/span> \u2013 Nikel %29, Kobalt %17 bile\u015fimine at\u0131fta bulunur<\/li>\n<li class=\"p1\"><span class=\"s1\"><b>UNS K94610<\/b><\/span>, <span class=\"s1\"><b>1.3981<\/b><\/span> \u2013 Evrensel tan\u0131mlama kodlar\u0131<\/li>\n<\/ul>\n<p class=\"p3\">Ticari olarak \u201cKovar\u201d ad\u0131, \u00e7o\u011fu zaman t\u00fcm Fe-Ni-Co sistemli d\u00fc\u015f\u00fck genle\u015fme ala\u015f\u0131mlar\u0131 i\u00e7in kullan\u0131lmakla birlikte, teknik olarak yaln\u0131zca ASTM F15 ile uyumlu olanlar ger\u00e7ek Kovar kabul edilir.<\/p>\n<hr \/>\n<h3><b>Kullan\u0131m Alanlar\u0131 ve M\u00fchendislik Uygulamalar\u0131<\/b><\/h3>\n<p class=\"p3\">Kovar, cam veya seramik ile s\u0131zd\u0131rmazl\u0131k istenen hassas sistemlerde e\u015fsiz bir m\u00fchendislik \u00e7\u00f6z\u00fcm\u00fc sunar. \u00d6zellikle \u0131s\u0131ya maruz kalan veya vakum ortamlar\u0131nda \u00e7al\u0131\u015fan sistemlerde tercih edilir.<\/p>\n<p class=\"p1\"><b>1.Elektronik End\u00fcstrisi<\/b><b><\/b><\/p>\n<p class=\"p1\">*Transist\u00f6r, diyot ve entegre devre paketlemeleri<br \/>\n*TO-3, TO-5 gibi metal muhafaza konnekt\u00f6rleri<br \/>\n*Mikrodalga bile\u015fen s\u0131zd\u0131rmazl\u0131k elemanlar\u0131<\/p>\n<p class=\"p1\"><b>2.Havac\u0131l\u0131k ve Uzay<\/b><b><\/b><\/p>\n<p class=\"p1\">*Hermetik alt sistem kaplamalar\u0131<br \/>\n*Vakum t\u00fcplerinin ve lazer t\u00fcplerinin cam-metal ba\u011flant\u0131lar\u0131<\/p>\n<p class=\"p1\"><b>3.T\u0131bbi Cihazlar<\/b><b><\/b><\/p>\n<p class=\"p1\">*Kalp pilleri, implante edilebilir cihaz g\u00f6vdeleri<br \/>\n*Hermetik cam kapakl\u0131 sens\u00f6rler<\/p>\n<p class=\"p1\"><b>4.Optoelektronik Sistemler<\/b><b><\/b><\/p>\n<p class=\"p1\">*Fiber optik konnekt\u00f6r yuvalar\u0131<br \/>\n*Lazer muhafaza sistemleri<\/p>\n<p class=\"p1\"><b>5.Ara\u015ft\u0131rma ve N\u00fckleer Enerji<\/b><b><\/b><\/p>\n<p class=\"p1\">*Kontroll\u00fc atmosferli deneysel kaplar<br \/>\n*N\u00fckleer sens\u00f6r s\u0131zd\u0131rmazl\u0131k elemanlar\u0131<\/p>\n<p class=\"p4\"><span class=\"s3\">Bu uygulamalarda <\/span><b>termal kararl\u0131l\u0131k<\/b><span class=\"s3\">, <\/span><b>m\u0131knat\u0131slanabilirlik kontrol\u00fc<\/b><span class=\"s3\">, <\/span><b>y\u00fcksek mukavemet<\/b><span class=\"s3\"> ve <\/span><b>cam ile uyumlu genle\u015fme<\/b><span class=\"s3\"> \u00f6n plandad\u0131r.<\/span><\/p>\n<hr \/>\n<h3><b>Avantajlar<\/b><\/h3>\n<ul>\n<li class=\"p1\"><b>Termal Genle\u015fme Uyumu: <\/b>Borosilikat camla uyumlu 4.6 x 10\u207b\u2076\/\u00b0C d\u00fczeyinde termal genle\u015fme katsay\u0131s\u0131 sayesinde, cam-metal ge\u00e7i\u015flerinde \u00e7atlama veya s\u0131zd\u0131rmazl\u0131k sorunu ya\u015fanmaz.<\/li>\n<li class=\"p1\"><b>Hermetik S\u0131zd\u0131rmazl\u0131k Yetene\u011fi: <\/b>S\u0131k\u0131 toleranslarla i\u015flenmi\u015f y\u00fczeyleri sayesinde vakum veya gaz ortamlar\u0131nda s\u0131zd\u0131rmazl\u0131k sa\u011flar. Kaps\u00fclleme sistemlerinde %10\u207b\u2079 mbar\u00b7L\/s alt\u0131nda s\u0131z\u0131nt\u0131 de\u011feri m\u00fcmk\u00fcnd\u00fcr.<\/li>\n<li class=\"p1\"><b>Is\u0131l \u0130\u015flem ile Mikroyap\u0131 Kontrol\u00fc: <\/b>Tavlama ile i\u00e7 gerilimler al\u0131nabilir; kontroll\u00fc \u0131s\u0131l i\u015flemle manyetik ve mekanik \u00f6zellikler ayarlanabilir.<\/li>\n<li class=\"p1\"><b>Kaynaklanabilirlik ve \u015eekillendirilebilirlik: <\/b>TIG, lazer ve diren\u00e7 kaynaklar\u0131na uygundur. Tel \u00e7ekme, levha haddeleme ve presle \u015fekil vermeye elveri\u015flidir.<\/li>\n<li class=\"p1\"><b>Y\u00fcksek Boyutsal Kararl\u0131l\u0131k: <\/b>Hassas \u00f6l\u00e7\u00fcl\u00fc optoelektronik bile\u015fenlerde ve mikromekanik uygulamalarda uzun s\u00fcre boyutsal kararl\u0131l\u0131\u011f\u0131n\u0131 korur.<\/li>\n<\/ul>\n<hr \/>\n<h3><b>Dezavantajlar<\/b><\/h3>\n<ul>\n<li class=\"p1\"><b>Y\u00fcksek Malzeme Maliyeti: <\/b>Kobalt i\u00e7eri\u011fi ve hassas \u00fcretim s\u00fcreci nedeniyle di\u011fer yap\u0131 \u00e7eliklerine g\u00f6re pahal\u0131d\u0131r.<\/li>\n<li class=\"p1\"><b>Manyetik \u00d6zellikler: <\/b>Y\u00fcksek nikel ve kobalt i\u00e7eri\u011fi nedeniyle ferromanyetik \u00f6zelliktedir. Baz\u0131 uygulamalarda bu istenmeyebilir.<\/li>\n<li class=\"p1\"><b>Oksitlenme E\u011filimi: <\/b>Y\u00fcksek s\u0131cakl\u0131kta y\u00fczeyde oksitlenme meydana gelebilir. Bu nedenle camla birle\u015fme y\u00fczeyleri temiz tutulmal\u0131 ve kontroll\u00fc atmosferde \u0131s\u0131l i\u015flem yap\u0131lmal\u0131d\u0131r.<\/li>\n<li class=\"p1\"><b>\u0130\u015flenebilirlik Zorluklar\u0131: <\/b>Sertli\u011fi ve elastik geri yaylanmas\u0131 nedeniyle hassas tala\u015fl\u0131 imalat i\u00e7in \u00f6zel kesici tak\u0131mlar gerektirir.<\/li>\n<\/ul>\n<hr \/>\n<h3><b>Sonu\u00e7 ve M\u00fchendislik De\u011ferlendirmesi<\/b><\/h3>\n<p class=\"p3\"><span class=\"s2\"><b>Kovar<\/b><\/span>, <span class=\"s2\"><b>termal genle\u015fme uyumu<\/b><\/span>, <span class=\"s2\"><b>s\u0131zd\u0131rmazl\u0131k kabiliyeti<\/b><\/span>, ve <span class=\"s2\"><b>boyutsal kararl\u0131l\u0131\u011f\u0131<\/b><\/span> sayesinde \u00f6zel m\u00fchendislik uygulamalar\u0131nda kritik rol oynayan stratejik bir malzemedir. Elektronik, optoelektronik ve n\u00fckleer sistemlerde cam ve seramik malzemelerle birlikte kullan\u0131labilen az say\u0131daki ala\u015f\u0131mdan biridir.<\/p>\n<p class=\"p3\"><span class=\"s2\"><b>ASTM F15<\/b><\/span> gibi teknik normlara g\u00f6re \u00fcretilen Kovar, her ne kadar maliyetli olsa da, sundu\u011fu \u00fcst\u00fcn <span class=\"s2\"><b>s\u0131zd\u0131rmazl\u0131k<\/b><\/span> ve <span class=\"s2\"><b>kararl\u0131l\u0131k<\/b><\/span> performans\u0131 sayesinde hassas sistemlerde rakipsizdir. \u00dcr\u00fcn tasar\u0131mc\u0131lar\u0131 i\u00e7in, \u00f6zellikle <span class=\"s2\"><b>CTE uyumu gerektiren sistemlerde<\/b><\/span>, Kovar teknik olarak ideal bir se\u00e7imdir.<\/p>\n<h5><\/h5>\n<h5><span class=\"s1\"><b>#ASTMF15<br \/>\n<\/b><\/span><span class=\"s1\"><b>#UNSK94610<br \/>\n#<\/b><\/span><b>1.3981<br \/>\n<span class=\"s1\">#<\/span><\/b><b><\/b><b>MIL-I-23011 Class 1<br \/>\n<span class=\"s1\">#<\/span><\/b><b><\/b><b>SAE AMS I-23011<br \/>\n<span class=\"s1\">#<\/span><\/b><b><\/b><b>AFNOR-NF A54-301<br \/>\n<span class=\"s1\">#<\/span><\/b><b><\/b><b>ISO 4829-1<br \/>\n<span class=\"s1\">#<\/span><\/b><span class=\"s1\"><b>Kovar\u00ae<br \/>\n<\/b><\/span><span class=\"s1\"><b>#Fernico<br \/>\n#<\/b><\/span><span class=\"s1\"><b>NiloK<br \/>\n#<\/b><\/span><span class=\"s1\"><b>Alloy29-17<\/b><\/span><br \/>\n<span class=\"s1\"><b>#<\/b><\/span><span class=\"s1\"><b>UNSK94610<\/b><\/span><\/h5>\n<p><!-- dm-ic-baglanti --><\/p>\n<div class=\"dm-ic-baglanti\" style=\"margin:28px 0 0;border:1px solid #e0e0e0;border-left:4px solid #DD3333;background:#FAFAFA;padding:16px 18px;\">\n<p style=\"font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#DD3333;margin:0 0 6px;line-height:1.4;\">Bu malzemeyi tedarik ediyoruz<\/p>\n<p style=\"margin:0 0 12px;font-size:15px;line-height:1.65;color:#333;\">Kovar (1.3981) tedarik ediyoruz \u2014 ASTM F15 standard\u0131nda, istenen \u00f6l\u00e7\u00fc ve formda. Stok durumu ve fiyat i\u00e7in bize ula\u015f\u0131n.<\/p>\n<p><a href=\"https:\/\/www.defencemetal.com\/index.php\/bize-ulasin\/\" style=\"display:inline-block;color:#ffffff;background:#24BEE5;text-decoration:none;font-weight:600;font-size:14px;padding:10px 17px;line-height:1.2;\">Teklif isteyin &rarr;<\/a>\n<\/div>\n<p><!-- \/dm-ic-baglanti --><\/p>\n<p><!-- dm-benzer --><\/p>\n<div class=\"dm-benzer\" style=\"margin:22px 0 0;padding:14px 16px;border:1px solid #e0e0e0;background:#FBFCFD;\">\n<p style=\"font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#9aa3a8;margin:0 0 8px;line-height:1.4;\">Benzer \u00fcr\u00fcnler<\/p>\n<p style=\"margin:0;font-size:15px;line-height:2;color:#333;\"><a href=\"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/25\/tungsten-astm-b760-astm-b777\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Tungsten<\/a> &nbsp;\u00b7&nbsp; <a href=\"https:\/\/www.defencemetal.com\/index.php\/nikel-200\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Nikel 200<\/a> &nbsp;\u00b7&nbsp; <a href=\"https:\/\/www.defencemetal.com\/index.php\/nikel-201\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Nikel 201<\/a> &nbsp;\u00b7&nbsp; <a href=\"https:\/\/www.defencemetal.com\/index.php\/invar-36\/\" style=\"color:#24BEE5;font-weight:600;text-decoration:none;\">Invar 36<\/a> &nbsp;\u00b7&nbsp; <a href=\"https:\/\/www.defencemetal.com\/index.php\/urunler\/\" style=\"color:#666;font-weight:600;text-decoration:none;\">T\u00fcm \u00fcr\u00fcnler &rarr;<\/a><\/p>\n<\/div>\n<p><!-- \/dm-benzer --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kovar tedarik ediyoruz. \u00d6l\u00e7\u00fc, standart kar\u015f\u0131l\u0131klar\u0131, stok ve teklif i\u00e7in Kovar \u00fcr\u00fcn sayfas\u0131na g\u00f6z at\u0131n. Kovar (UNS K94610 \/ ASTM F15): Cam-Metal Uyumunda Termal Genle\u015fme Kontroll\u00fc Ala\u015f\u0131m Ala\u015f\u0131m Tan\u0131m\u0131 ve Kimyasal Kompozisyon Kovar, termal genle\u015fme katsay\u0131s\u0131 \u00f6zel olarak kontrol edilmi\u015f, nikel-demir-kobalt esasl\u0131 bir ala\u015f\u0131md\u0131r. Cam ve seramik malzemelerle hermetik (gaz s\u0131zd\u0131rmaz) s\u0131zd\u0131rmazl\u0131k yap\u0131lmas\u0131 gereken uygulamalarda &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.defencemetal.com\/index.php\/2025\/06\/24\/kovar-1-3981-astm-f15\/\" class=\"more-link\"><span class=\"screen-reader-text\"> &#8220;KOVAR \/ 1.3981 \/ ASTM F15&#8221;<\/span>devam\u0131n\u0131 oku<\/a><\/p>\n","protected":false},"author":1,"featured_media":2129,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1848","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genel"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kovar Nedir? 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