| 研究生: |
陳建翰 Chen, Chien-Han |
|---|---|
| 論文名稱: |
Ir添加量對齒科用陶瓷披覆合金機械強度與晶粒大小之影響 Effect of additions of Ir on grain size and mechanical properties of Au70.1-Ag12.4-Cu10.3-Pd6.2-Pt1 Procelain Fused Metal alloy |
| 指導教授: |
黃文星
Hwang, Wen-Shing |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 材料科學及工程學系 Department of Materials Science and Engineering |
| 論文出版年: | 2011 |
| 畢業學年度: | 99 |
| 語文別: | 中文 |
| 論文頁數: | 77 |
| 中文關鍵詞: | 陶瓷披覆合金 |
| 外文關鍵詞: | Procelain Fused Metal |
| 相關次數: | 點閱:41 下載:0 |
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齒科用陶瓷披覆合金PFM(Procelain Fusing Metal)為了達到應用上的要求,會加入晶粒細化劑Ir來達到晶粒細化的效果,來增加合金機械強度與金屬氧化物的分布等。本研究設計Au70.1-Ag12.4-Cu10.3-Pd6.2-Pt1-IrX此合金系統來做為齒科用陶瓷披覆合金。在此合金系統下加入不同量的Ir做為成核劑,來探討Ir對合金晶粒大小與機械性質的影響。微量的Ir元素(0.05wt%~0.1wt%)對系統即有明顯的晶粒細化效果。當Ir濃度達到0.1wt%時則達到飽和,使晶粒粒徑趨於一固定值。合金的降伏強度則在Ir大於0.05wt%後開始上升,至0.3wt%時達到最大值,但Ir添加量在0.5wt%與0.7wt%時,較濃度0.3wt%的試片機械性質略微下降。本研究同時對於合金熔煉的氣氛對PFM性質的影響進行探討。對真空環境中與大氣環境中的兩種融煉製程下的機械性質進行比較。
Adding small Ir element into Procelain Fusing Metal alloy can produce finer grains of PFM.Mechanical properties and dispersion of metal oxide can be improved by grain refining.In order to understand the effect of grain refining and mechanical properties by adding Ir into Au70.1-Ag12.4-Cu10.3-Pd6.2-Pt1-IrX alloy, series of experiments are carried out.
There is an obvious effect of grain refining when adding 0.1wt% Ir into alloy.More than 0.1wt% Ir addition will no longer change the grain size obviously. Yield strength and Ultimate tensile strength are getting higher after adding more than 0.1wt% Ir. We found that these two mechanical properties will reach the maxima when 0.3wt% Ir added. And there is a little descent on mechanical properties when 0.5wt%、0.7wt% of Ir existed in alloys. In addition, mechanical properties are compared in different processes: Casting in arc vaccum furnace and Casting in high frequency induction melting furnace in air.
1. 葉哲政, 牙科用合金材料市場發展現況. 2009.
2. W.B.Liu and J.N.Wang, Strengthening of a Pd-free high gold dental alloy for porcelain bonding by a pre-firing heat treatment. Dental Materials, 2007. 23(9): p. 1136-1141.
3. Association, A.D., ADA NO.5-Dental casting alloys, American Dental Association.
4. Standardization, I.O.f., Metal-ceramic dental restorative systems. 1999, International Organization for Standardization. p. 14.
5. ASM International. Handbook Committee., ASM handbook. 10th ed. 1990, Materials Park, OH: ASM International. <v. 1-9, 11, 13-14, 15, 19-22B in 20>.
6. T.Uzuka, Y.Kanzawa, and K.Yasuda, Determination of the AuCu Superlattice Formation Region in Gold-Copper-Silver Ternary System. Journal of Dental Research, 1981. 60(5): p. 883-889.
7. K.Yasuda and M.Ohta, Difference in Age-hardening Mechanism in Dental Gold Alloys. Journal of Dental Research, 1982. 61(3): p. 473-479.
8. Thomas H, C., Mechanical Behavior of Materials. 2000: McGraw-Hill Companies.
9. J.Fischer, Ceramic bonding to a dental gold–titanium alloy. Biomaterials, 2002. 23: p. 1303~1311.
10. K. J.Anusavice, et al., Interactive Effect of Stress and Temperature on Creep of PFM Alloys. Journal of Dental Research, 1985. 64(8): p. 1094-1099.
11. G.Gottstein, Physical foundations of material science 2004: Springer.
12. D.A.Porter, K.E.E., Phase Transformations in Metals and Alloys. Second Edition ed. 2004: CRC Press.
13. J. P.Nielsen and J. J.Tuccillo, Grain Size in Cast Gold Alloys. Journal of Dental Research, 1966. 45(3): p. 964-969.
14. J.Fischer, Effect of small addition of Ir on properties of a binary Au-Ti alloy. Dental Materials, 2002. 18: p. 331-335.
15. G. Gusmano, R.M., G. Montesperelli *, M.E. Tatab, E. Bemporadd M. Valente, and G.M. S. Kaciulis Influence of Si, Ni and Co additions on gold alloy for investment cast. Journal of Alloys and Compounds, 2001. 325: p. 252~258.
16. H.Y.Jung, et al., Effect of Indium on the Microstructures and Mechanical Properties of Dental Gold Alloys. Materials Science Forum, 2006. 510-511: p. 738-741.
17. Guha, A.ASTM Metals Handbook. 9th Edition ed. 1985: ASM International,Ohio.
18. 何文福, 姜., 許學全,吳世經,林錫禎, 牙科用鑄造Ti-Cr 合金之金屬燒付陶瓷鍵結與熱膨脹係數研究. 科學與工程技術期刊, 2008. 4(3): p. 19~25.
19. R. G.Craig and C. T.Hanks, Cytotoxicity of Experimental Casting Alloys Evaluated by Cell Culture Tests. Journal of Dental Research, 1990. 69(8): p. 1539-1542.
20. D.Brune, Metal release from dental biomaterials. Biomaterials, 1986. 7: p. 163~175.
21. Süleyman H.Tuna, et al., The influence of the pure metal components of four different casting alloys on the electrochemical properties of the alloys. Dental Materials, 2009. 25(9): p. 1096-1103.
22. K.Hisatsune, A.S., K.Hamasaki,R.Hernandez,J.P.Salonga, Phase transformation in a dental gold alloy for soldering. Journal of Alloys and Compounds, 1997. 261: p. 308~312.
校內:2016-08-09公開