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<\/p>\n<\/p>\n
Silika tozu, ana bile\u015feni silikon dioksit olan inorganik metalik olmayan bir malzemedir. Hammadde olarak kristal kuvars, erimi\u015f kuvars vb.’den yap\u0131l\u0131r ve \u00f6\u011f\u00fctme, hassas derecelendirme, safs\u0131zl\u0131k giderme ve di\u011fer i\u015flemlerle i\u015flenir. M\u00fckemmel dielektrik \u00f6zelliklere, d\u00fc\u015f\u00fck termal genle\u015fme katsay\u0131s\u0131na ve y\u00fcksek termal iletkenli\u011fe sahiptir. Bak\u0131r kapl\u0131 laminatlarda, epoksi kal\u0131plama bile\u015fiklerinde, yal\u0131t\u0131m malzemelerinde, yap\u0131\u015ft\u0131r\u0131c\u0131larda, kaplamalarda, seramiklerde ve di\u011fer alanlarda yayg\u0131n olarak kullan\u0131l\u0131r.<\/p>\n
1. Bak\u0131r kapl\u0131 laminat<\/p>\n
Bak\u0131r kapl\u0131 laminat, “bak\u0131r folyo + dielektrik yal\u0131t\u0131m katman\u0131 (re\u00e7ine ve takviye malzemesi) + bak\u0131r folyo” yap\u0131s\u0131na sahip bask\u0131l\u0131 devre kartlar\u0131n\u0131n \u00fcretimi i\u00e7in \u00f6nemli bir alt tabakad\u0131r. \u00c7e\u015fitli devre sistemleri i\u00e7in bir ak\u0131\u015f yukar\u0131 temel malzemedir.<\/p>\n
Bak\u0131r kapl\u0131 laminatlar i\u00e7in dolgu se\u00e7imleri aras\u0131nda silikon mikro tozu, al\u00fcminyum hidroksit, magnezyum hidroksit, talk pudras\u0131, mika tozu ve di\u011fer malzemeler bulunur. Bunlar aras\u0131nda, silikon mikro tozu \u0131s\u0131 direnci, mekanik \u00f6zellikler, elektriksel \u00f6zellikler ve re\u00e7ine sistemlerinde da\u011f\u0131labilirlik a\u00e7\u0131s\u0131ndan g\u00f6receli avantajlara sahiptir. Is\u0131 direncini ve nem direncini iyile\u015ftirmek, ince bak\u0131r kapl\u0131 laminatlar\u0131n sertli\u011fini iyile\u015ftirmek, termal genle\u015fme katsay\u0131s\u0131n\u0131 azaltmak, boyutsal kararl\u0131l\u0131\u011f\u0131 iyile\u015ftirmek, delme konumland\u0131rma do\u011frulu\u011funu ve i\u00e7 duvar p\u00fcr\u00fczs\u00fczl\u00fc\u011f\u00fcn\u00fc iyile\u015ftirmek, katmanlar aras\u0131ndaki veya yal\u0131t\u0131m katmanlar\u0131 ile bak\u0131r folyo aras\u0131ndaki yap\u0131\u015fmay\u0131 iyile\u015ftirmek vb. i\u00e7in kullan\u0131labilir, bu nedenle bak\u0131r kapl\u0131 laminat dolgular\u0131nda tercih edilir.<\/p>\n
K\u00fcresel silikon mikro tozu en iyi performansa sahiptir ancak maliyeti y\u00fcksektir ve yaln\u0131zca \u00fcst d\u00fczey bak\u0131r kapl\u0131 laminatlar alan\u0131nda kullan\u0131l\u0131r. Termal iletkenlik, dolgu, termal genle\u015fme ve dielektrik \u00f6zellikler a\u00e7\u0131s\u0131ndan k\u00fcresel silikon mikro tozunun performans\u0131 daha iyidir, ancak fiyat a\u00e7\u0131s\u0131ndan a\u00e7\u0131sal silikon mikro tozu daha d\u00fc\u015f\u00fckt\u00fcr. Bu nedenle, kapsaml\u0131 performans ve maliyet g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda, k\u00fcresel silikon mikro tozu \u015fu anda esas olarak y\u00fcksek frekansl\u0131 ve y\u00fcksek h\u0131zl\u0131 bak\u0131r kapl\u0131 laminatlar, IC ta\u015f\u0131y\u0131c\u0131lar\u0131 vb. gibi y\u00fcksek kaliteli bak\u0131r kapl\u0131 laminatlar alan\u0131nda kullan\u0131lmaktad\u0131r ve uygulama senaryosu ne kadar y\u00fcksekse, ekleme oran\u0131 da o kadar y\u00fcksektir.<\/p>\n
2. Epoksi kal\u0131plama bile\u015fi\u011fi<\/p>\n
Epoksi kal\u0131plama bile\u015fi\u011fi, baz re\u00e7ine olarak epoksi re\u00e7ineden, k\u00fcrleme maddesi olarak y\u00fcksek performansl\u0131 fenolik re\u00e7ineden, dolgu maddesi olarak silikon tozundan ve \u00e7e\u015fitli katk\u0131 maddelerinden yap\u0131lm\u0131\u015f toz halinde bir kal\u0131plama bile\u015fi\u011fidir. Entegre devreler gibi yar\u0131 iletken paketleme i\u00e7in temel bir malzemedir (yar\u0131 iletken paketlemenin %97’sinden fazlas\u0131 epoksi kal\u0131plama bile\u015fi\u011fi kullan\u0131r).<\/p>\n
3. Elektrik yal\u0131t\u0131m malzemesi<\/p>\n
Elektrik yal\u0131t\u0131m \u00fcr\u00fcnlerinde kullan\u0131lan silikon tozu, k\u00fcrlenmi\u015f \u00fcr\u00fcn\u00fcn do\u011frusal genle\u015fme katsay\u0131s\u0131n\u0131 ve k\u00fcrleme i\u015flemi s\u0131ras\u0131nda b\u00fcz\u00fclme oran\u0131n\u0131 etkili bir \u015fekilde azaltabilir, i\u00e7 stresi azaltabilir ve yal\u0131t\u0131m malzemesinin mekanik mukavemetini iyile\u015ftirebilir, b\u00f6ylece yal\u0131t\u0131m malzemesinin mekanik ve elektriksel \u00f6zelliklerini etkili bir \u015fekilde iyile\u015ftirebilir ve geli\u015ftirebilir. Bu nedenle, bu alandaki m\u00fc\u015fterilerin silikon mikro tozuna y\u00f6nelik i\u015flevsel gereksinimleri daha \u00e7ok d\u00fc\u015f\u00fck do\u011frusal genle\u015fme katsay\u0131s\u0131, y\u00fcksek yal\u0131t\u0131m ve y\u00fcksek mekanik mukavemet olarak yans\u0131t\u0131l\u0131rken, dielektrik \u00f6zellikleri ve termal iletkenlik gereksinimleri nispeten d\u00fc\u015f\u00fckt\u00fcr.<\/p>\n
Elektriksel yal\u0131t\u0131m malzemeleri alan\u0131nda, ortalama 5-25 \u00b5m par\u00e7ac\u0131k boyutuna sahip tek spesifikasyonlu silikon mikro tozu \u00fcr\u00fcnleri genellikle elektriksel yal\u0131t\u0131m \u00fcr\u00fcnlerinin \u00f6zelliklerine ve \u00fcretim s\u00fcre\u00e7lerinin gereksinimlerine g\u00f6re se\u00e7ilir ve \u00fcr\u00fcn beyazl\u0131\u011f\u0131, par\u00e7ac\u0131k boyutu da\u011f\u0131l\u0131m\u0131 vb. konularda y\u00fcksek gereksinimler ortaya \u00e7\u0131kar.<\/p>\n
4. Yap\u0131\u015ft\u0131r\u0131c\u0131lar<\/p>\n
Yap\u0131\u015ft\u0131r\u0131c\u0131 re\u00e7ineye doldurulmu\u015f silikon mikro tozu, k\u00fcrlenmi\u015f \u00fcr\u00fcn\u00fcn do\u011frusal genle\u015fme katsay\u0131s\u0131n\u0131 ve k\u00fcrleme s\u0131ras\u0131ndaki b\u00fcz\u00fclme oran\u0131n\u0131 etkili bir \u015fekilde azaltabilir, yap\u0131\u015ft\u0131r\u0131c\u0131n\u0131n mekanik mukavemetini iyile\u015ftirebilir, \u0131s\u0131 direncini, anti-ge\u00e7irgenli\u011fi ve \u0131s\u0131 da\u011f\u0131l\u0131m\u0131 performans\u0131n\u0131 iyile\u015ftirebilir, b\u00f6ylece ba\u011flama ve s\u0131zd\u0131rmazl\u0131k etkisini iyile\u015ftirebilir.<\/p>\n
Silikon mikro tozunun par\u00e7ac\u0131k boyutu da\u011f\u0131l\u0131m\u0131, yap\u0131\u015ft\u0131r\u0131c\u0131n\u0131n viskozitesini ve tortula\u015fmas\u0131n\u0131 etkileyecek ve b\u00f6ylece yap\u0131\u015ft\u0131r\u0131c\u0131n\u0131n i\u015flenebilirli\u011fini ve k\u00fcrlemeden sonraki do\u011frusal genle\u015fme katsay\u0131s\u0131n\u0131 etkileyecektir.<\/p>\n
5. Petek seramikler<\/p>\n
Otomobil egzoz ar\u0131t\u0131m\u0131 i\u00e7in petek seramik ta\u015f\u0131y\u0131c\u0131lar ve kordierit malzeme otomobil egzoz filtresi DPF dizel motor egzoz ar\u0131t\u0131m\u0131 i\u00e7in al\u00fcmina, silikon mikro tozu ve di\u011fer malzemelerden kar\u0131\u015ft\u0131rma, ekstr\u00fczyon kal\u0131plama, kurutma, sinterleme ve di\u011fer i\u015flemler yoluyla yap\u0131l\u0131r. K\u00fcresel silikon mikro tozu, petek seramik \u00fcr\u00fcnlerinin kal\u0131plama oran\u0131n\u0131 ve kararl\u0131l\u0131\u011f\u0131n\u0131 iyile\u015ftirebilir.<\/p>\n","protected":false},"excerpt":{"rendered":"
Silisyum mikro tozunun par\u00e7ac\u0131k boyut da\u011f\u0131l\u0131m\u0131, yap\u0131\u015ft\u0131r\u0131c\u0131n\u0131n viskozitesini ve tortula\u015fmas\u0131n\u0131 etkileyerek yap\u0131\u015ft\u0131r\u0131c\u0131n\u0131n i\u015flenebilirli\u011fini ve k\u00fcrlenmeden sonraki do\u011frusal genle\u015fme katsay\u0131s\u0131n\u0131 etkileyecektir.<\/p>\n","protected":false},"author":7,"featured_media":135807,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[851],"tags":[],"class_list":["post-135841","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-endustri-haberleri-tr"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/135841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/comments?post=135841"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/135841\/revisions"}],"predecessor-version":[{"id":135842,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/135841\/revisions\/135842"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media\/135807"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media?parent=135841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/categories?post=135841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/tags?post=135841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}