the heat conductivity of material improves rapidly by the content of the graphite increasing,and the heat conductivity preponderates over 1.7 w/(m·K) when the content of graphite is 5% in the material.
The result shows that as the ratio of Sm to Fe is 1∶1.87 the magnetostrictive property of the alloy is optimal,the substitution of Dy for Sm can improve the material strength,and the heat treatment can remarkablyimprove the material magnetostriction.
At that time, the polymer and plastic industry was in its nascent stage but the industry quickly grew, providing the materials for a large portion of manufactured goods.
Structural and physicochemical descriptors derived by RP-HPLC are discussed in relation to retention factors with special accent on properties of reversed-phase materials.
We used different substituted isatins as starting materials.
In this paper, a method has been established and validated for screening and identification of individual as well as total BFA by high-performance liquid chromatography and liquid chromatography/electrospray mass spectrometry in fungal raw materials.
Column packing materials are always a key factor influencing the development of high-performance liquid chromatography (HPLC).
The material presented here is a synopsis of the Ph.D thesis of the author, cf.
Numerical results of the lubrication show that the differential viscosity is the principal non-Newtonian property affecting the lubrication, it is determined by the material parameters of the lubricant and is affected by the shearing rate.
Node force and stress results of the torsion bar from last step simulation were acquired; taking into account the material characteristics and influential factors, fatigue life of the flexible body of the torsion bar was predicted.
The density, thermal conductivity, hermeticity and thermal expansion coefficients of the material are measured, and the relationship between extrusion temperature and properties is obtained.
At the same time, thermal conductivity varies between 104-140 W/(m·K); with the extrusion temperature, thermal expansion coefficient also increases but within 13 × 10-6 (at 100°C) and hermeticity of the material is high to 10-9 order of magnitude.