ASTM-E289 2010

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E289-04(2010) Standard Test Method for Linear Thermal Expansion of Rigid Solids with Interferometry

Published By	Publication Date	Number of Pages
ASTM	2010	9

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Description

ASTM E289-04-Reapproved2010

Historical Standard: Standard Test Method for Linear Thermal Expansion of Rigid Solids with Interferometry

ASTM E289

Scope

1.1 This test method covers the determination of linear thermal expansion of rigid solids using either a Michelson or Fizeau interferometer.

1.2 For this purpose, a rigid solid is defined as a material which, at test temperature and under the stresses imposed by instrumentation, has a negligible creep, insofar as significantly affecting the precision of thermal length change measurements.

1.3 It is recognized that many rigid solids require detailed preconditioning and specific thermal test schedules for correct evaluation of linear thermal expansion behavior for certain material applications. Since a general method of test cannot cover all specific requirements, details of this nature should be discussed in the particular material specifications.

1.4 This test method is applicable to the approximate temperature range −150 to 700°C. The temperature range may be extended depending on the instrumentation and calibration materials used.

1.5 The precision of measurement of this absolute method (better than ±40 nm/(m·K)) is significantly higher than that of comparative methods such as push rod dilatometry (for example, Test Methods D696 and E228) and thermomechanical analysis (for example, Test Method E831) techniques. It is applicable to materials having low and either positive or negative coefficients of expansion (below 5 μ m/(m·K)) and where only very limited lengths or thickness of other higher expansion coefficient materials are available.

1.6 Computer or electronic based instrumentation, techniques and data analysis systems equivalent to this test method can be used. Users of the test method are expressly advised that all such instruments or techniques may not be equivalent. It is the responsibility of the user to determine the necessary equivalency prior to use.

1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

coefficient of linear thermal expansion; contraction; expansion; Fizeau interferometer; interferometry; Michelson interferometer; Coefficient of linear thermal expansion; Comparative Fizeau interferometers; Contraction; Copper; Expansion; Fizeau interferometer; Interferograms/Interferometry; Linear thermal expansion; Michelson interferometer; Platinum; Priest (dental) interferometer; Rigid solids

ICS Code

ICS Number Code n/a

DOI: 10.1520/E0289-04R10

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use FIG. 1
3	Interferences Apparatus FIG. 2 FIG. 3 FIG. 4
4	FIG. 5 FIG. 6
5	Test Specimen Verification Procedure
6	Calculation TABLE 1
7	Report Precision and Bias Keywords TABLE 2
8	A1. COMPARATIVE TYPE FIZEAU INTERFEROMETERS A1.1 A1.2 A1.3 A1.4 FIG. A1.1
9	X1. TEMPERATURE DETERMINATION X1.1 X1.2 X1.3 REFERENCES

Additional information

Standard Title	E289-04(2010) Standard Test Method for Linear Thermal Expansion of Rigid Solids with Interferometry
Published Code	ASTM
Publication Date	2010
Pages Count	9