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导热系数测量(瞬间平面热源法)

¥300.00

  • 型号: THS-176
  • 商品库存: 有现货

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导热系数测量(瞬间平面热源法)

测试样例

1)    样例

适用领域

可用于被测样品的大小在1 到10 立方厘米之间,在一些特殊情况下可减少至0.01 立方厘米。样品的预处理只限于将两个样品切出一个平面即可的不同的材料,比如金属、合金、矿石、陶瓷、玻璃、粉末、塑料、建筑材料、在体内和体外液体中的生物材料的导热系数的测定

面向学科

广泛应用到电力、汽车、包装、生物、制药等领域的材料的热导率、热扩散率和热容的测试

样品要求

为了精确测定热导率和热扩散系数,样品的厚度最好应不要少于传感器半径,具体传感器尺寸及测量范围为:

2)    固体材料:测试过程中, 探头被放置在两块平展的样品中间,平展的样品应保证将探头牢牢的夹紧,避免在样品和探头之间产生任何可能的气泡

3)    粉末样品:将探头置于样品中,然后使粉末样品填满容器
4)    液体样品:将探头悬挂在样品内,保持探头平展并完全浸没在液体样品中

收费标准

室温测试:400元/样品;变温测量:在室温测量基础上,每增加一个温度点的数据测量加收300元

测试仪器

仪器名称:Hot Disk 热常数分析仪
仪器型号:Hot Disk TPS2500S
生产厂家:瑞典
仪器描述:Hot Disk 热常数分析仪采用瞬间平面热源法同时对样品的热导率、热扩散率以及单位体积的热容进行测试,这种方法是研究热传导性能中最精确、方便的一种。

仪器技术参数

1)    导热率范围:0.005-500W/mK
2)    温度范围:10-1000K(Kapton探头:最高200℃;云母覆层探头:最高700℃)
3)    精度:±1%

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