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Precipitation hardening of a Cu-free dental gold alloy for multipurpose
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ÀÌÈñ°æ ( Lee Hee-Kyung ) - ´ë±¸º¸°Ç´ëÇÐ Ä¡±â°ø°ú
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±Ç¿ëÈÆ ( Kwon Yong-Hoon ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÀç·áÇб³½Ç
±èÇüÀÏ ( Kim Hyung-Il ) - ºÎ»ê´ëÇб³ Ä¡ÀÇÇÐÀü¹®´ëÇпø Ä¡°úÀç·áÇб³½Ç
KMID : 0362220100370020141
Abstract
Á¶¼ºÀÌ 73.0 wt% Au - 16.0 wt% Ag - 5.8 wt% Pd - 3.0 wt% Zn -1.6 wt% Pt - 0.5 wt% Sn - 0.1 wt% IrÀÎ ½ÃÆÇ Ä¡°ú¿ë ´Ù¸ñÀûÇü ±ÝÇÕ±ÝÀÇ ½ÃÈ¿°æÈ °Åµ¿°ú »ó º¯ÅÂ, ¹Ì¼¼±¸Á¶ÀÇ º¯È, ¿ø¼ÒºÐÆ÷ÀÇ º¯È¸¦ Á¶»çÇÏ¿©, ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù. °æµµ´Â ½ÃÈ¿Ãʱ⿡ »ó½ÂÇϱ⠽ÃÀÛÇÏ¿©, ÃÖ°í °æµµÄ¡¿¡ µµ´ÞÇÏ¿´°í, ½Ãȿó¸® ½Ã°£À» ¿¬ÀåÇÔ¿¡ µû¶ó ÃÖ°í °æµµ¸¦ Àá½Ã À¯ÁöÇÑ ÈÄ °æµµ°¡ ¼¼È÷ ÇÏ°ÇÏ¿´´Ù. ¿ëüÈó¸®µÈ ½ÃÆíÀº Au-Ag-based ¥á1 »ó°ú Zn, Pt ±×¸®°í SnÀ» °í¿ëÇÏ´Â Au-Pd-based ¥â »óÀÇ 2»óÀ̾úÀ¸¸ç, ½Ãȿ󸮿¡ ÀÇÇØ ¥á1 »óÀº ¥á2 »ó°ú ºÒ±ÔÄ¢ÇÑ ¥á3 »óÀ» °ÅÄ£ Cu3AuÇüÀÇ Au3Pd ±ÔÄ¢»óÀ¸·Î º¯ÅÂÇÏ¿´°í, ¥â »óÀº ¾Æ¹«·± º¯È°¡ ¾ø¾ú´Ù. °æµµ »ó½ÂÀº ¥á1 »óÀÌ ¥á2 »ó°ú ¥á3 »óÀ¸·Î »óºÐÇصǴ µ¿¾È Çü¼ºµÈ °ÝÀÚ µÚƲ¸²¿¡ ±âÀÎÇÏ¿´°í, ¥á3 »óÀÌ Cu3AuÇüÀÇ Au3Pd ±ÔÄ¢»óÀ¸·Î º¯ÅÂÇÏ´Â °úÁ¤Àº °æµµÀÇ »ó½Â¿¡ ±â¿©ÇÏÁö ¾Ê¾Ò´Ù. Ãþ»óÁ¶Á÷À» Çü¼ºÇÏ´Â ÀÔ°è¹ÝÀÀÀº °æµµ¸¦ »ó½Â½ÃÄ×À¸³ª, Ãþ»óÁ¶Á÷ÀÇ Á¶´ëÈ´Â Au-Ag-based ¥á2 ±âÁö¿Í Cu3AuÇüÀÇ Au3Pd ±ÔÄ¢»óÀÎ ¼®ÃâÃþ »çÀÌÀÇ °è¸éÀ» °¨¼Ò½ÃÄÑ °ÝÀÚ µÚƲ¸²À» ÇؼҽÃÄ×°í, ÀÌ·ÎÀÎÇØ °æµµ°¡ ÇÏ° ÇÏ¿´´Ù. ½ÃÆí Àüü¸¦ µ¤°í ÀÖ´Â Ãþ»ó ±¸Á¶¿¡¼ ±âÁöÃþÀº PdÀÌ °áÇ̵ÈAu-Ag-based ¥á2»óÀ¸·Î ÀÌ·ç¾îÁ® ÀÖ¾ú°í, Ãþ»ó ±¸Á¶¿¡¼ ¼®ÃâÃþÀº ZnÀ» °í¿ëÇÏ´Â Cu3AuÇüÀÇ Au3Pd ±ÔÄ¢»óÀ¸·Î ÀÌ·ç¾îÁ® ÀÖ¾ú´Ù. ÀÔÀÚÇü ±¸Á¶´Â Zn, Pt ±×¸®°í SnÀ» °í¿ëÇÏ´Â Au-Pd-based ¥â »óÀ¸·Î ÀÌ·ç¾îÁ® ÀÖ¾ú´Ù.
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Precipitation hardening; Cu-free multi purpose dental gold alloy; Au3Pd ordered phase; Age-hardening; Microstructural change
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