Development of Corrosion resistant dental Ag-based alloys with low Pd and Cu content.
开发低 Pd 和 Cu 含量的耐腐蚀牙科银基合金。
基本信息
- 批准号:14571856
- 负责人:
- 金额:$ 1.86万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2002
- 资助国家:日本
- 起止时间:2002 至 2004
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The corrosion behaviors of twenty five experimental Ag-Pd-Cu-Au alloys and five Ag-In-Au alloys were examined in 0.9% NaCl and 0.1% Na_2S solutions to develop a high corrosion resistant dental casting alloy with low Pd content. The corrosion resistance was evaluated by electrochemical techniques and the analysis of released metal ions by atomic absorption spectrophotometry. The surface of the alloy was analyzed by X-ray photoelectron spectroscopy (XPS).It was found that the 15 mass % of Pd was required for the Ag-Pd-Cu-Au alloys to maintain sufficient corrosion resistance in simulated oral environments. The Ag-15Pd-15Au-(10-20)Cu alloys can be alternatives to the Ag-20Pd-(10-20)Cu-12Au alloy that is currently used for inlays, crowns and bridges.For Ag-In-Au alloy system, small amount of Au (1-3 mass%) drastically improve corrosion resistance of the Ag-20In alloy both in 0.9% NaCl solution and 0.1% Na_2S solution. The Ag-20In-(1-3)Au alloy is can be used as a Pd-free dental casting alloy that possesses high corrosion resistance. These alloys are suitable for inlays and crowns.
为研制一种低钯含量的高耐蚀牙科铸造合金,研究了25种实验用Ag-Pd-Cu-Au合金和5种Ag-In-Au合金在0.9%NaCl和0.1%Na_2S溶液中的腐蚀行为。通过电化学技术和原子吸收分光光度法分析释放的金属离子来评估耐腐蚀性。采用X射线光电子能谱(XPS)对合金表面进行了分析,发现Ag-Pd-Cu-Au合金在模拟口腔环境中保持足够的耐腐蚀性需要15%(质量分数)的Pd。Ag-15 Pd-15 Au-(10-20)Cu合金可以替代目前用于镶嵌、冠、桥的Ag-20 Pd-(10-20)Cu-12 Au合金,对于Ag-In-Au合金体系,少量的Au(1-3 mass%)显著提高了Ag-20 In合金在0.9%NaCl溶液和0.1%Na2S溶液中的耐蚀性。Ag-20 In-(1-3)Au合金可用作具有高耐蚀性的无钯牙科铸造合金。这些合金适用于嵌体和牙冠。
项目成果
期刊论文数量(53)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
生理食塩水中における金銀パラジウム合金の耐食性に及ぼすAuおよびPd含有量の影響
Au、Pd含量对金银钯合金在生理盐水中耐蚀性能的影响
- DOI:
- 发表时间:2003
- 期刊:
- 影响因子:0
- 作者:遠藤一彦;大野弘機;他
- 通讯作者:他
K.Endo, H.Ohno et al.: "Electrochemical and surface studies on the passivity of a dental Pd-based alloy in alkaline sulphide solution."Corrosion Science. 45. 1491-1504 (2003)
K.Endo、H.Ohno 等人:“牙科钯基合金在碱性硫化物溶液中的钝化性的电化学和表面研究。”腐蚀科学。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
In vitro corrosion characteristics of commercially available orthodontic wires.
市售正畸钢丝的体外腐蚀特性。
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Y.Yonekura;K.Endo;M.Iijima;H.Ohno;I.Mizoguchi
- 通讯作者:I.Mizoguchi
Reliability of pach testing for metal hypersensitivity -Stability of metak ions and solution pH-
金属超敏反应的 pach 测试的可靠性 -metak 离子和溶液 pH 值的稳定性 -
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:K.Endo;H.Ohno et al.
- 通讯作者:H.Ohno et al.
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ENDO Kazuhiko其他文献
Surface analysis of titanium disks with strontium coating
具有锶涂层的钛盘的表面分析
- DOI:
10.4012/dmj.2021-122 - 发表时间:
2022 - 期刊:
- 影响因子:2.5
- 作者:
URANGOO Sugarbaatar;KADO Takashi;NEZU Takashi;NAGANO-TAKEBE Futami;ENDO Kazuhiko;FURUICHI Yasushi - 通讯作者:
FURUICHI Yasushi
ENDO Kazuhiko的其他文献
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{{ truncateString('ENDO Kazuhiko', 18)}}的其他基金
Biofunctionalization of titanium oral implant by DLC coating and chemical modifications.
通过 DLC 涂层和化学修饰对钛口腔种植体进行生物功能化。
- 批准号:
23592895 - 财政年份:2011
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of HA coated implant with porous surface structure and analysis of its osteoconductive property.
具有多孔表面结构的HA涂层植入物的开发及其骨传导性能分析。
- 批准号:
19592257 - 财政年份:2007
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of Corrosion resistant Ag-Pd-Cu-Au alloys for patient with metal hypersensitivity
开发用于金属过敏患者的耐腐蚀Ag-Pd-Cu-Au合金
- 批准号:
11671943 - 财政年份:1999
- 资助金额:
$ 1.86万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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