The molybdenum disc, also known as molybdenum base plate, features excellent electric and thermal conductivity, lower thermal expansion coefficient, higher bending strength, and so on….
Description The molybdenum disc, also known as molybdenum base plate, features excellent electric and thermal conductivity, lower thermal expansion coefficient, higher bending strength, and so on.
An instrument offering scientists the ideal tool for R&D laboratories to measure the linear thermal expansion and to calculate the Coefficient of Thermal Expansion(CTE) of ceramics, glasses, high performance materials, polymers, metals and alloys with great accuracy. Features include.
Carbon fiber is tough, light, and helps to improve energy efficiency. It has a coefficient of thermal expansion that is around ten times smaller than that of metal, meaning excellent dimensional stability in the face of temperature fluctuations.
Metals& Alloys- NETZSCH Analyzing& Testing Specific heat capacities, coefficients of thermal expansion, melting and solidification temperatures or enthalpies, and characteristic thermal effects- also under corrosive conditions- are some of the areas of high interest in metallurgical applications.
Because the high-temperature thermal expansion coefficients(the ratio at which volume changes due to temperature change) of tungsten and copper alloys greatly differ, in the past not only the brazing material but also soft materials that served as cushions(called intermediate strata) were necessary.
Advantages Tungsten copper support plate having both low expansion characteristics of tungsten, and high thermal conductivity properties have copper, especially valuable is that its thermal expansion coefficient and thermal conductivity can be designed by the adjustment of composition material and thus to the application of the material brought a great convenience.
Both the low-expansion properties of tungsten, but also has high thermal conductivity properties of copper, its thermal expansion coefficient and thermal conductivity of conductive material can be adjusted to change the composition and thereby to the material provided to facilitate the use.
Thermal shock(heat shock), heat fatigue caused by temperature cycle Solder cracks occur when heat stress is applied to a solder joint due to the difference in the thermal coefficients of the MLCC and PCB, in an environment in which changes between high temperatures and low temperatures are repeated.
低熱膨張係数(金属-セラミック構造体は、金属-
Low thermal expansion coefficient(of the metal- ceramic structure,
In addition, the average thickness of the second reinforcing member 4 is determined in accordance with the thermal expansion coefficient of the wiring board 2, the shape, the size, and the constituent material of the wiring board 2, and is not particularly limited, and is, for example, about 0.02 mm or more and 0.8 mm or less.
Properties Tungsten carbide copper contact with high density, high conductivity, high strength and hardness, low resistivity, low thermal expansion coefficient and resistance arc burning properties. Advantage in electrical contact materials and electrode materials are applied to other materials in the short term can not replace.
We use HIP molding plant- high temperature sintered tungsten matrix- copper-impregnated impregnation technology that, can produce tungsten copper tube for 6-50% of the various pieces of large or profiled Tungsten copper alloy material we produced has characteristics of high-density, high thermal conductivity, high strength and hardness, low resistivity, low thermal expansion coefficient and easy machining etc, and tungsten copper tube has excellent performance in areas of the burning arc of resistance, anti-welded and corrosion resistance.
低熱膨張係数。
Low thermal expansion values.
熱膨張係数(α)。
Thermal expansion ratio(α).
熱膨張係数が小さく異方性が小さい。
Smaller thermal expansion coefficient and less anisotropy.
相手材との熱膨張係数と一致する。
Matching coefficient of thermal expansion to a mating material.
体積熱膨張係数は液体と固体の両方に対して定義できます。
The volumetric thermal expansion coefficient can be defined for both liquids and solids.
低温から常温付近までの熱膨張係数がきわめて小さい合金です。
This alloy has an extremely low thermal expansion coefficient from low temperature to around room temperature.
そして、マウントシリコン半導体チップのヒートシンクに一致する熱膨張係数;
Heat sinks with thermal expansivity matching silicon for semiconductor chip mounts;
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