{"id":130342,"date":"2023-12-14T14:06:26","date_gmt":"2023-12-14T06:06:26","guid":{"rendered":"https:\/\/www.alpapowder.com\/130342\/"},"modified":"2023-12-14T14:06:28","modified_gmt":"2023-12-14T06:06:28","slug":"kuresel-alumina-tozunun-uygulama-alanlari","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/tr\/130342\/","title":{"rendered":"K\u00fcresel Al\u00fcmina Tozunun Uygulama Alanlar\u0131"},"content":{"rendered":"
<\/p>\n
Ultra ince k\u00fcresel al\u00fcminan\u0131n benzersiz fiziksel ve kimyasal \u00f6zellikleri, biyoseramiklerde, y\u00fczey koruyucu katman malzemelerinde, kimyasal kataliz\u00f6rlerde ve kataliz\u00f6r ta\u015f\u0131y\u0131c\u0131larda, entegre devre \u00e7iplerinde, havac\u0131l\u0131kta, k\u0131z\u0131l\u00f6tesi emme malzemelerinde ve neme duyarl\u0131 sens\u00f6rlerde yayg\u0131n olarak kullan\u0131lmas\u0131n\u0131 sa\u011flar.<\/p>\n
Ultra ince k\u00fcresel al\u00fcmina \u00fcr\u00fcnlerinin bir\u00e7ok alandaki m\u00fckemmel performans\u0131, ham toz par\u00e7ac\u0131klar\u0131n\u0131n morfolojisi ve boyutuyla yak\u0131ndan ilgilidir. D\u00fczenli morfoloji, k\u00fc\u00e7\u00fck spesifik y\u00fczey alan\u0131, b\u00fcy\u00fck paketleme yo\u011funlu\u011fu, iyi ak\u0131\u015f performans\u0131, y\u00fcksek sertlik ve mukavemet, \u00fcr\u00fcn\u00fcn uygulama performans\u0131n\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde art\u0131rabilir.<\/p>\n
K\u00fcresel al\u00fcmina tozunun uygulama alanlar\u0131<\/p>\n
1. Hassas parlatma a\u015f\u0131nd\u0131r\u0131c\u0131lar\u0131<\/p>\n
Al\u00fcmina, y\u00fcksek sertli\u011fi ve iyi stabilitesi nedeniyle hassas i\u015fleme ve imalat gibi end\u00fcstrilerde, \u00f6zellikle kimyasal mekanik parlatmada (CMP) giderek yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/p>\n
2.\u00d6zel seramik hammaddeleri<\/p>\n
Seramik g\u00f6vdelerin gereksinimleri y\u00fcksek yo\u011funluk, k\u00fc\u00e7\u00fck b\u00fcz\u00fclme deformasyonu ve kolay sinterlemedir. Seramik tozunun boyutu, morfolojisi ve da\u011f\u0131l\u0131m\u0131, tozun performans\u0131n\u0131 \u00f6l\u00e7mek i\u00e7in \u00f6nemli g\u00f6stergelerdir. Tozun bir\u00e7ok morfolojisi aras\u0131nda da\u011f\u0131lm\u0131\u015f k\u00fcresel mikro toz daha iyidir.<\/p>\n
3. Di\u011fer uygulamalar<\/p>\n
G\u00f6zenekli al\u00fcmina i\u00e7in destek olarak k\u00fcresel al\u00fcmina tozu kullan\u0131labilir. Olu\u015fan g\u00f6zenekler nispeten d\u00fczenli oldu\u011fundan deste\u011fin tamam\u0131n\u0131 homojenle\u015ftirmek kolayd\u0131r. Dolum i\u00e7in kullan\u0131lan al\u00fcmina tozu, iyi ak\u0131\u015fkanl\u0131k, organik madde ile g\u00fc\u00e7l\u00fc bir \u015fekilde birle\u015fme yetene\u011fi gerektirir ve k\u00fcresel bir \u015fekil tercih edilir. Al\u00fcmina ayn\u0131 zamanda \u00fc\u00e7 ana renk ve uzun s\u00fcre parlakl\u0131\u011fa sahip fosforlar\u0131n da ana hammaddesidir. Ayr\u0131ca kataliz\u00f6rler ve kataliz\u00f6r ta\u015f\u0131y\u0131c\u0131lar\u0131 alanlar\u0131nda da bir\u00e7ok uygulamas\u0131 vard\u0131r.<\/p>\n
<\/p>\n
Ultra ince k\u00fcresel al\u00fcminan\u0131n haz\u0131rlanmas\u0131<\/p>\n
K\u00fcresel end\u00fcstrinin h\u0131zl\u0131 geli\u015fmesiyle birlikte, k\u00fcresel al\u00fcmina tozu son 10 y\u0131lda kapsaml\u0131 bir \u015fekilde incelenmi\u015ftir. K\u00fcresel al\u00fcminan\u0131n haz\u0131rlanmas\u0131 malzeme ara\u015ft\u0131rmalar\u0131nda s\u0131cak bir konu haline geldi.<\/p>\n
Bilyal\u0131 frezeleme y\u00f6ntemi<\/p>\n
Bilyal\u0131 \u00f6\u011f\u00fctme y\u00f6ntemi, ultra ince al\u00fcmina tozu haz\u0131rlamak i\u00e7in en yayg\u0131n y\u00f6ntemdir. Bilyal\u0131 de\u011firmenin d\u00f6n\u00fc\u015f\u00fc veya titre\u015fimi genellikle kullan\u0131l\u0131r. Hammaddeler a\u015f\u0131nd\u0131r\u0131c\u0131 taraf\u0131ndan etkilenir, \u00f6\u011f\u00fct\u00fcl\u00fcr ve kar\u0131\u015ft\u0131r\u0131l\u0131r ve b\u00fcy\u00fck par\u00e7ac\u0131k boyutundaki toz, ultra ince toz halinde rafine edilir.<\/p>\n
Homojen \u00e7\u00f6keltme y\u00f6ntemi<\/p>\n
Homojen bir \u00e7\u00f6zeltide \u00e7\u00f6keltme i\u015flemi, kristal \u00e7ekirdeklerin olu\u015ftu\u011fu, daha sonra toplan\u0131p b\u00fcy\u00fcd\u00fc\u011f\u00fc ve son olarak \u00e7\u00f6zeltiden \u00e7\u00f6keldi\u011fi bir i\u015flemdir. Homojen \u00e7\u00f6zeltideki \u00e7\u00f6kelticinin konsantrasyonu azalt\u0131labilirse veya yava\u015f yava\u015f olu\u015fturulabilirse, homojen olacakt\u0131r. \u00c7ok say\u0131da k\u00fc\u00e7\u00fck kristal \u00e7ekirdek \u00fcretilir ve sonunda olu\u015fan ince \u00e7\u00f6kelme par\u00e7ac\u0131klar\u0131 \u00e7\u00f6zelti boyunca e\u015fit \u015fekilde da\u011f\u0131lacak ve uzun s\u00fcre denge durumunu koruyacakt\u0131r. Bu ya\u011f\u0131\u015f elde etme y\u00f6ntemine homojen ya\u011f\u0131\u015f denir.<\/p>\n
Sol-em\u00fclsiyon-jel y\u00f6ntemi<\/p>\n
K\u00fcresel toz par\u00e7ac\u0131klar\u0131 elde etmek i\u00e7in insanlar, k\u00fc\u00e7\u00fck k\u00fcresel damlac\u0131klar olu\u015fturmak i\u00e7in ya\u011f faz\u0131 ile su faz\u0131 aras\u0131ndaki aray\u00fczey gerilimini kullan\u0131r, b\u00f6ylece sol par\u00e7ac\u0131klar\u0131n\u0131n olu\u015fumu ve jelle\u015fmesi k\u00fc\u00e7\u00fck damlac\u0131klarla s\u0131n\u0131rland\u0131r\u0131l\u0131r ve sonunda k\u00fcresel bir \u00e7\u00f6kelme elde edilir. Par\u00e7ac\u0131klar.<\/p>\n
Top d\u00fc\u015f\u00fcrme y\u00f6ntemi<\/p>\n