Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer

Importancia y uso:

5.1 Coefficients of linear thermal expansion are required for design purposes and are used, for example, to determine dimensional behavior of structures subject to temperature changes, or thermal stresses that can occur and cause failure of a solid artifact composed of different materials when it is subjected to a temperature excursion.

5.2 This test method is a reliable method of determining the linear thermal expansion of solid materials.

5.3 For accurate determinations of thermal expansion, it is absolutely necessary that the dilatometer be calibrated by using a reference material that has a known and reproducible thermal expansion. The appendix contains information relating to reference materials in current general use.

5.4 The measurement of thermal expansion involves two parameters: change of length and change of temperature, both of them equally important. Neglecting proper and accurate temperature measurement will inevitably result in increased uncertainties in the final data.

5.5 The test method can be used for research, development, specification acceptance, quality control (QC) and quality assurance (QA).

Subcomité:

E37.05

Referida por:

C0372-94R24, F0105-72R19, E0438-92R24, F0079-69R19, B0872-19, F3273-17R21E01, B0925-15R22, F1538-24, E1652-21, D0696-24, D5592-94R18, C1427-21, D5335-24, E2585-09R22, B1015-20, C0747-23, C1793-15R24, B0883-24, C1783-15R24, C0781-20, E0289-17, D2442-75R20, E0831-24, C1470-20, D6745-22, B0753-07R18, A1095-15R23, F3319-20, C0824-91R20, D4535-21, E1461-13R22, D7775-21, F3562-24, D1039-16R22, D5364-14R24, E0251-20A, D4762-23

Volúmen:

14.01

Número ICS:

77.040.99 (Other methods of testing of metals)

Palabras clave:

contraction; dilatometer; dilatometry; expansion; expansivity; linear thermal expansion; mean coefficient of thermal expansion; push-rod;