ºê·¹ÀÌ¡ ¿Âµµ º¯È¿¡ µû¸¥ ZrO2¿Í Ti-6Al-4VÀÇ Á¢ÇÕ Æ¯¼º
Brazing characteristics of ZrO2 and Ti-6Al-4V brazed joints with increasing temperature
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±â¼¼È£ ( Kee Se-Ho ) - ¼¿ï½Ã¸³´ëÇб³ ½Å¼ÒÀç°øÇаú
¹Ú»óÀ± ( Park Sang-Yoon ) - ¼¿ï½Ã¸³´ëÇб³ ½Å¼ÒÀç°øÇаú
Ç㿵±¸ ( Heo Young-Ku ) - (ÁÖ)³×¿À¹ÙÀÌ¿ÀÅØ
Á¤ÀçÇÊ ( Jung Jae-Pil ) - ¼¿ï½Ã¸³´ëÇб³ ½Å¼ÒÀç°øÇаú
±è¿øÁß ( Kim Won-Joong ) - ¼¿ï½Ã¸³´ëÇб³ ½Å¼ÒÀç°øÇаú
KMID : 0362420120500030169
Abstract
¿¬±¸ ¸ñÀû: ¿Âµµ º¯È¿¡ µû¸¥ ZrO2¿Í Ti-6Al-4VÀÇ Á¢ÇÕ Æ¯¼º¿¡ ´ëÇØ ¾Ë¾Æº¸±â À§ÇÏ¿© »õ·Î¿î ºê·¹ÀÌ¡ ÇÕ±ÝÀ» Á¦Á¶ÇÏ°í, ºê·¹ÀÌ¡ ¿Âµµ°¡ Á¢ÇÕ Æ¯¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇÏ¿© Á¶»çÇÏ°íÀÚ ÇÏ¿´´Ù.
¿¬±¸ Àç·á ¹× ¹æ¹ý: º» ¿¬±¸¿¡¼ »ç¿ëµÈ ½ÃÆíÀ¸·Î´Â ½ÇÇè¿ë ZrO2 ¸ðÀç(ZirBlank-PS, Acucera, Inc., Gyeonggi do, Korea)´Â ¼Ò°á ÀüÀÇ ºí·ÏÇüÅÂ(65 mm ¡¿ 36 mm ¡¿ 12 mm (t))À̸ç, À̸¦ À߶ó »çÆ÷(#2400)·Î Ç¥¸é¿¬¸¶ ÈÄ ¼Ò°áÇÏ¿´´Ù. ¼Ò°áµÈ ZrO2 ½ÃÆíÀÇ Å©±â´Â 3 mm ¡¿ 3 mm ¡¿ 3 mm (t) ÀÌ´Ù. Ti-6Al-4V ¸ðÀç(Ti 6Al 4V ELI CG Bar, TMS, Washington, USA)´Â Á÷°æ 10 mm ¡¿ 5 mm (t)¸¦ »ç¿ëÇÏ¿´´Ù. ¼Ò°áµÈ ZrO2¿Í Ti-6Al-4VÀÇ Á¢ÇÕÀ» À§ÇÏ¿© ºê·¹ÀÌ¡ ÇÕ±ÝÀ» Á¦Á¶ÇÏ¿´´Ù. ½ÃÆíÀ» 3±ºÀ¸·Î ³ª´©¾îA±ºÀº 700¡É¿¡¼, B±ºÀº 750¡É¿¡¼, C±ºÀº 800¡É¿¡¼ °¢°¢ ºê·¹ÀÌ¡ ÇÏ¿´´Ù. ºê·¹ÀÌ¡ ºÎÀÇ µÎ²²¿Í °áÇÔÀ²ÀÇ ÃøÁ¤Àº °¢ ±º´ç ÇϳªÀÇ ½ÃÆíÀ¸·Î °¢ ½ÃÆí ´ç 5ȸ¾¿ ¹Ýº¹ ÃøÁ¤ÇÏ¿© Æò±Õ°ªÀ» ÃëÇÏ¿´´Ù.
°á°ú: ºê·¹ÀÌ¡ ÇÕ±ÝÀ» »ç¿ëÇÏ¿© Áø°ø ºê·¹ÀÌ¡À» ¼öÇàÇÑ °á°ú ZrO2 ¿Í Ti-6Al-4V ´Â 700¡É - 800¡É¿¡¼ ¾çÈ£ÇÑ Á¢ÇÕÀ» º¸¿´´Ù. ºê·¹ÀÌ¡ ÈÄ ºê·¹ÀÌ¡ ¿Âµµ º¯È¿¡ µû¸¥ ºê·¹ÀÌ¡ ºÎÀÇ µÎ²² ¹× °áÇÔÀ²ÀÇ º¯È´ÂSEMÀ» »ç¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù. ºê·¹ÀÌ¡ ¿Âµµ°¡ 700¡É¿¡¼ 800¡É·Î Áõ°¡ÇÔ¿¡ µû¶ó CuTi ±Ý¼Ó°£ ÈÇÕ¹° Ãþ ¹× Ti-Sn-Cu-Ag°è ÈÇÕ¹° ÃþÀÇ µÎ²²´Â °¢°¢ 4.5 §¿¡¼ 10.3 §·Î, 3.1 §¿¡¼ 5.0 §·Î Áõ°¡µÇ¾ú´Ù. ¶ÇÇÑ ºê·¹ÀÌ¡ ¿Âµµ°¡ 700¡É¿¡¼ 800¡É·Î Áõ°¡ÇÔ¿¡ µû¶ó ºê·¹ÀÌ¡ Á¢ÇÕ°è¸éÀÇ °áÇÔÀ²Àº ZrO2 ¹× Ti-6Al-4V °è¸é¿¡¼ °¢°¢25%¿¡¼ 16.3%, 5%¿¡¼ 1.5%·Î °¨¼ÒµÇ¾ú´Ù.
°á·Ð: ºê·¹ÀÌ¡ ¿Âµµ°¡ 700¡É¿¡¼ 800¡É·Î Áõ°¡µÊ¿¡ µû¶ó, ºê·¹ÀÌ¡ Á¢ÇÕ°è¸éÀÇ °áÇÔÀ²Àº ZrO2 ¹× Ti-6Al-4V °è¸é¿¡¼ ¸ðµÎ °¨¼ÒµÇ¾ú´Ù. ÀÌ´Â °áÇԺο¡¼ ZrO2¿Í È°¼º¿ø¼ÒÀÎ Ti°úÀÇ ¹ÝÀÀÀÌ ÃæºÐÈ÷ ÀϾÁö ¾Ê¾Æ¼ ºê·¹ÀÌ¡ ÇÕ±ÝÀÌ ZrO2¿¡ ¿þÆõÇÁö ¾ÊÀº °ÍÀÌ ¿øÀÎÀ̶ó°í »ç·áµÈ´Ù.
Purpose: In this study, brazing characteristics of ZrO2 and Ti-6Al-4V brazed joints with increasing temperature were investigated.
Materials and Methods: The sample size of the ZrO2 was 3 mm ¡¿ 3 mm ¡¿ 3 mm (thickness), and Ti-6Al-4V was 10 mm (diameter) ¡¿ 5 mm (thickness). The filler metal consisted of Ag-Cu-Sn-Ti was prepared in powder form. The brazing sample was heated in a vacuum furnace under 5 ¡¿ 10-6 torr atmosphere, while the brazing temperature was changed from 700 to 800¡É for 30 min.
Results: The experimental results shows that brazed joint of ZrO2 and Ti-6Al-4V occurred at 700 - 800¡É. Brazed joint consisted of Ag-rich matrix and Cu-rich phase. A Cu-Ti intermetallic compounds and a Ti-Sn-Cu-Ag alloy were produced along the Ti-6Al-4V bonded interface. Thickness of the reacted layer along the Ti-6Al-4V bonded interface was increased with brazing temperature. Defect ratios of ZrO2 and Ti-6Al-4V bonded interfaces decreased with brazing temperature.
Conclusion: Thickness and defect ratio of brazed joints were decreased with increasing temperature. Zirconia was not wetting with filler metal, because the reaction between ZrO2 and Ti did not occur enough.
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Dental implant; Active metal brazing; Joining; Titanium
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