Creep in a palladium-enriched high-copper amalgam.

Creep in a palladium-enriched high-copper amalgam.
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在富含钯的高铜汞合金中蠕变。

DOI:
10.1016/0142-9612(88)90086-5
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发表时间:
1988
期刊:
影响因子:
14
通讯作者:
Lin,JH
Lin,JH
中科院分区:
工程技术1区
文献类型:
--
作者:
Greener,EH;Chung,KH;Lin,JH

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在一种分散相高铜汞齐中加入钯可以显著地抑制η‘(Cu6Sn5)的浓度,降低蠕变。对含高铜银汞合金的Pd和6个商用对照的牙科蠕变和24小时蠕变随施加温度和应力的变化进行了详细的研究。将Pd取代量高达20wt0Pd的银-铜或银-铜-钯分散剂中的一部分与传统银汞合金的两部分混合。在试验过程中,对样品施加了从25℃到60℃的不同温度和36到72兆帕的应力。对于商业控制和不含PD的实验汞齐来说,蠕变是温度和应力的强烈函数。实验中的银汞合金含有高达10wt0的Pd,Pd取代了Ag,在所应用的温度和应力范围内表现出基本恒定的蠕变。
Palladium additions to a dispersed phase high-copper amalgam have been shown recently to suppress markedly the η′(Cu 6 Sn 5) concentration and decrease creep. A detailed study of the dental and 24 h creep for Pd containing high-copper amalgams and six commercial controls as a function of applied temperature and stress was performed. One part of Ag-Cu or Ag-Cu-Pd dispersants with substitutions of up to 20 wt 0 Pd for either Ag or Cu was blended with two parts of traditional amalgam alloy. Various temperatures from 25 to 60° C and stresses from 36 to 72 MPa were applied to the samples during the test. For commercial controls and experimental amalgams with no Pd, creep is a strong function of temperature and stress. The experimental amalgam containing up to 10 wt 0 Pd, Pd substituted for Ag, demonstrated essentially constant creep over the temperature and stress range applied.
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