ASTM E831 测试使用热机械分析技术确定固体材料的线性热膨胀技术系数。 该测试方法适用于在测试温度范围内表现出足够硬度的固体材料,以使传感探头不会压入样品。 例如,线性热膨胀系数用于设计目的,并用于确定当由两种不同材料制成的固体经受温度变化时是否会因热应力而发生故障。 该测试方法与测试电绝缘材料的测试方法...
国际标准分类中,astm e-831涉及到机械试验、建筑材料、绝缘流体。在中国标准分类中,astm e-831涉及到热学计量、长度计量、建材产品综合。美国材料与试验协会,关于astm e-831的标准ASTM E831-12 热力分析法测试固体材料线性热膨的标准试验方法 ASTM E831-13 采用热机械分析的固体材料线性热膨胀的标准试验方法 ASTM...
thermal conductivity are close to that of the test specimen.N OTE 8—Intralaboratory testing indicates that no detectable increase inimprecision is observed for specimen sizes from 2 to 10 mm in length, forheating rates from 2 to 10°C/min, and for thermal conductivities from 0.2to 400 W/(...
ASTM E831-03 当前最新 ASTM E831-24 适用范围 1.1 本测试方法涵盖使用热机械分析技术测定固体材料的线性热膨胀。 1.2 本试验方法适用于在试验温度范围内表现出足够刚性的固体材料,使得传感探头不会对样品产生压痕。 1.3用本试验方法测得的线热膨胀系数的下限为5μm/(m·176℃)。该测试方法可以在较低(或负)扩...
ASTM E831 - ASTM Standard 下载积分: 3500 内容提示: Designation: E 831 – 03Standard Test Method forLinear Thermal Expansion of Solid Materials byThermomechanical Analysis 1This standard is issued under the f i xed designation E 831; the number immediately following the designation indicates the ...
ASTM E831-12由美国材料与试验协会 US-ASTM 发布于 2012。 ASTM E831-12 在中国标准分类中归属于: A54 热学计量。 ASTM E831-12 热力分析法测试固体材料线性热膨的标准试验方法的最新版本是哪一版? 例如,线性热膨胀系数用于设计目的,并确定当由两种不同材料组成的固体受到温度变化时是否可能发生热应力失效。该...
内容提示: Designation: E 831 – 03Standard Test Method forLinear Thermal Expansion of Solid Materials byThermomechanical Analysis1This standard is issued under the fixed designation E 831; the number immediately following the designation indicates the year oforiginal adoption or, in the case of ...
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Coefficient of Linear Thermal Expansion (CLTE) - ASTM E831 The change in length per unit length of a material per degree of temperature change. CLTE is measured using a thermomechanical analyzer. The specimen is held in an enclosure and is contacted by a probe leading to a displacement ...
Designation: E 831 – 06 Standard Test Method for Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis1 This standard is issued under the ?xed designation E 831; the number immediately following the designation indicates the year of original adoption or, in the case of revision...