ASTM E289 Standard Test Method for Linear Thermal Expansion of Rigid Solids with Interferometry

    ASTM E289 Introduction

    In order to solve thermal stress issues in solid artifacts made of various materials, ASTM E289 assists in determining thermal expansion coefficients that are essential for design. It provides crucial direction on specimen setup, design, and methods for precise thermal expansion measurements. With the greatest network of testing labs in the USA to perform ASTM E289 tests for our clients, MaTestLab is among the top testing service providers. It is adaptable and meets the needs of quality control, specifications, research and development, and accurate thermal measurements.

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    ASTM E289 Test Method

    Monochromatic Illumination of the SpecimenA specimen is positioned by ASTM E289 in between polished reflective ends or mirrors. These mirrors have surfaces coated in a high-reflectance metal, such as gold, and are composed of uniform sapphire or silica. To produce a fringe pattern, both surfaces are simultaneously lit by a monochromatic light source or a parallel laser beam.
    Detecting Changes in Fringe PatternThe specimen’s expansion or contraction during heating or cooling modifies the length of the optical path between the reflecting surfaces, which in turn modifies the fringe pattern. It is possible to determine expansion and the expansion coefficient by detecting this alteration and translating it into a change in length.

    ASTM E289 Equipment and Sample Preparation

    Specimen DetailThe linear thermal expansion of rigid solids is determined using ASTM E289 standards.
    Specimen SizeThe cylindrical specimen has a consistent diameter of 61m rad and hemispherical ends with a radius of curvature equal to or less than 3mm.

    ASTM E289 Test Result and Interpretation

    To sum up, ASTM E289 offers a trustworthy method for figuring out rigid materials’ linear thermal expansion, which is crucial for a variety of engineering applications. Engineers are able to comprehend how materials behave under temperature changes and use this knowledge to design and evaluate the performance of systems and structural components by monitoring thermal expansion correctly.

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    ASTM E289 is related to tests, including ASTM D696 for testing the coefficient of linear expansion of plastics, ASTM E220 for thermocouple calibration, and ASTM E228 for measuring the linear thermal expansion of solids.

    Use of ASTM E289 in Various Industries

    The standard is useful in the aerospace, electronics, automotive, and construction industries, mainly for selecting materials to control extreme temperature fluctuation, maintain dimensional stability, and evaluate materials in temperature-sensitive environments.

    Materials Commonly Tested with ASTM E289

    It is used for the measurement of linear thermal expansion coefficients of rigid solids such as metals, ceramics, glass, and advanced composites. The method is thus useful for novel materials intended for special applications.

    Importance of ASTM E289

    The method is important for material reliability and performance in temperature variations applications. It provides accurate measurements of linear thermal expansion, helps in design optimization, and prevents failures due to thermal stress, thus improving the material selection process.

    FAQ

    Where can I get the astm e289 tested?
    You can share your astm e289 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e289 test to various testing techniques.
    Please contact us for a detailed quote for your astm e289 testing needs. Cost incurred to carry out different astm e289 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
    The required number of samples or specimens should comply with the procedure given in the astm e289 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
    MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
    The turnaround time for astm e289 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
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