OXIDATION BEHAVIOR OF NI-BASE CROWN AND BRIDGE ALLOYS

镍基冠桥合金的氧化行为

• 批准号: 3219470
• 负责人: George R. Baran
• 金额: $ 7.11万
• 依托单位: TEMPLE UNIV OF THE COMMONWEALTH
• 依托单位国家: 美国
• 财政年份: 1980
• 资助国家: 美国
• 起止时间: 1980-08-01 至 1986-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3219470
• 关键词: X ray crystallography; alloys; chemical binding; dental casting material; dental prosthesis; metal dental material; nickel; oxidation; porcelain; surface property; temperature; thermogravimetry

The objective of this study is to continue characterization of the oxidation behavior of Ni-base alloys used for dental restorations. Phase transformations occurring in the alloys during dental laboratory procedures will be studied by Energy Dispersive Analysis of X-Rays and Differential Thermal Analysis to relate such transformations to alloy oxidation behavior. Experiments will be done to examine the continuity of the alloy/oxide interface as an indication of the adherence of the oxide to the alloy. Since fusion of porcelain to an alloy may be considered as continued oxidation of the alloy/oxide-porcelain interface will be studied. Testing of current theories of alloy/oxide/porcelain bonding will be done by studying the extent of oxide dissolution and changes in composition at the alloy/oxide interface using Scanning Electron Microscopy, Energy Dispersive Analysis of X-Rays and Scanning Auger Microscopy. The effect of porcelain/oxide reactions on the continuity of the interface between alloy and oxideporcelain will be explained. The results of this research will be helpful in understanding alloy oxidation during porcelain bonding, and, as a corollary, enable the design of new, more cost efficient detal alloys.

本研究的目的是继续表征 牙科用镍基合金的氧化行为。 相 在牙科实验室操作过程中合金中发生的转变 将通过X射线能量色散分析和微分 热分析将这种转变与合金氧化联系起来 行为 将进行实验以检查 合金/氧化物界面作为氧化物对合金/氧化物界面的粘附性的指示。 合金 由于瓷与合金的融合可以被认为是 合金/氧化物-瓷界面的持续氧化将 研究了 合金/氧化物/瓷结合的现有理论的测试将 通过研究氧化物溶解的程度和 使用扫描电子显微镜观察合金/氧化物界面的成分 显微镜、X射线能量色散分析和扫描俄歇 显微镜 陶瓷/氧化物反应对连续性的影响 将解释合金和氧化物瓷之间的界面。 的 这一研究结果将有助于理解合金的氧化 在陶瓷结合过程中，并且，作为必然结果，能够设计新的， 更经济的金属合金。

项目成果

Work hardening and forming behavior of cast dental alloys.

铸造牙科合金的加工硬化和成形行为。

• DOI: 10.1002/jbm.820150608
• 发表时间: 1981
• 期刊: Journal of biomedical materials research
• 作者: Baran,G;Woodland,EC
• 通讯作者: Woodland,EC

Oxide compounds on Ni-Cr alloys.

Ni-Cr 合金上的氧化物。

• DOI: 10.1177/00220345840630111601
• 发表时间: 1984
• 期刊: Journal of dental research
• 影响因子: 7.6
• 作者: Baran,GR

Conjugal transfer of broad-host-range incompatibility group P and Q plasmids from Escherichia coli to Actinobacillus actinomycetemcomitans.

将广泛宿主范围的不相容性 P 组和 Q 组质粒从大肠杆菌共轭转移至放线放线菌伴生放线杆菌。

• DOI: 10.1128/iai.61.8.3544-3547.1993
• 发表时间: 1993
• 期刊: Infection and immunity
• 影响因子: 3.1
• 作者: Goncharoff,P;Yip,JK;Wang,H;Schreiner,HC;Pai,JA;Furgang,D;Stevens,RH;Figurski,DH;Fine,DH
• 通讯作者: Fine,DH

Solution of Ni-Cr alloy oxides in an alkali alumino-silicate glass.

Ni-Cr 合金氧化物在碱金属铝硅酸盐玻璃中的溶液。

• DOI: 10.1016/s0109-5641(88)80049-6
• 发表时间: 1988
• 期刊: Dental materials : official publication of the Academy of Dental Materials
• 作者: Baran,GR

Oxidation kinetics of some Ni-Cr alloys.

一些镍铬合金的氧化动力学。

• DOI: 10.1177/00220345830620011101
• 发表时间: 1983
• 期刊: Journal of dental research
• 影响因子: 7.6
• 作者: Baran,G