The invention relates to a composite preparation technology of inorganic materials and high-polymer materials, and provides a method for reducing the thermal expansion coefficient of PTFE (polytetrafluoroethylene) under the condition that the thermal expansion coefficient of the PTFE is too large. The ...
a测定材料的热膨胀系数发现添加了20%石墨得PTFE和铜基体的匹配性最好。在实验轧机上测试试制轴承的润滑性能,试验表明添加20%石墨的PTFE润滑性能良好,稳定性好。 The determination material thermal-expansion coefficient discovered increased 20% graphite to result in PTFE and the copper substrate match is best.In...
a测定材料的热膨胀系数发现添加了20%石墨得PTFE和铜基体的匹配性最好。在实验轧机上测试试制轴承的润滑性能,试验表明添加20%石墨的PTFE润滑性能良好,稳定性好。 The determination material thermal-expansion coefficient discovered increased 20% graphite to result in PTFE and the copper substrate match is best.In...
Noun1.coefficient of friction- the ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface coefficient- a constant number that serves as a measure of some property or characteristic ...
coefficient of thermal expansionhigh-thermal-conductivity fillerpolymer dielectric compositethermal conductivitythermal interfacial resistance... Jiang,P.,Tanaka,... - 《IEEE Electrical Insulation Magazine》 被引量: 144发表: 2011年 The Effects of Filler Content and Size on the Properties of PTFE/SiO2 ...
For this, microhardness, polymerization shrinkage, the coefficient of thermal expansion, and surface morphology were evaluated during or after light curing in ... HK Yong,GH Jeon,CM Jang,... - 《Journal of Biomedical Materials Research Part B Applied Biomaterials》 被引量: 24发表: 2010年 The ...
From the thermal stress measurement, the thermal expansion coefficient and Young's modulus have also been obtained; Young's modulus is in the order of magnitude of 108g/cm2 with HMDS and NBD films, and the thermal expansion coefficient is in the order of magnitude of 10−5 deg−1 with...
The present invention discloses a glass fiber having a low thermal expansion coefficient in the technical field of glass fibers.The glass fibers of the present invention are composed of the following components: SiO.The glass fiber having a low expansion coefficient of the present invention does no...
wherein the first and second rotors are formed from a metal having a coefficient of thermal expansion from about 1 (10−6in/in*K) to about 13 (10−6in/in*K), and wherein at least one of the outer surface of the first rotor, the outer surface of the second rotor, or the boos...
The linear thermal expansion of molded PTFE samples of various crystallinities was measured in the vicinity of the transition at about 400°K. In the plot of length of the specimen versus temperature, an inflection of the straight line was observed in the temperature range from 388 to 402°K...