摘要
Ｐｌａｔ－Ⅱ型铸造陶瓷材料是一种新型的口腔修复材料，为考察其强度和刚度是否达到临床要求，采用国内外通用的方法测定了Ｐｌａｔ－Ⅱ型铸造陶瓷（ＰＣＣ－Ⅱ型）材料的抗压强度、抗拉强度、抗弯强度及显微硬度。结果显示该铸造陶瓷的抗压强度为５４１．７ＭＰａ，抗拉强度为４２．５ＭＰａ，抗弯强度为１４２．０ＭＰａ，弹性模量为６１．４ＧＰａ，显微硬度为４９９．６ｋｇ／ｍｍ２。
In preparation for the clinical use of PlatⅡ Castable Ceramics (PCCⅡ), we tested its compressive strength, tensile strength, flexural strength and microhardness. The flexural strength was tested by the threepoint bending test. The result showed that the compressive strength was 541.7 MPa; the tensile strength 42.5 MPa; the flexural strength 142.0 MPa; the modulus of elasticity 61.4 GPa; and the microhardness 499.6 kg/mm3. The strength anol microhardness of PCCⅡ materials were better than those of human enamel. So PCCⅡ is applicable to restorations in dentistry.
出处
《华西医科大学学报》
CAS
CSCD
1997年第4期349-352,共4页
Journal of West China University of Medical Sciences
基金
国家自然科学基金
关键词
铸造陶瓷
抗压强度
抗拉强度
抗弯强度
口腔
Castable ceramics Compressive strength Tensile strength Flexural strength Microhardness
