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1.1 This specification covers the requirements for fabricated alumina parts suitable for electronic and electrical applications and ceramic-to-metal seals as used in electron devices. This specification specifies limits and methods of test for electrical, mechanical, thermal, and general properties of the bodies used for these fabricated parts, regardless of part geometry.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C20 Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water
C108 Symbols for Heat Transmission
C242 Terminology of Ceramic Whitewares and Related Products
C408 Test Method for Thermal Conductivity of Whiteware Ceramics
C573 Methods for Chemical Analysis of Fireclay and High-Alumina Refractories
C623 Test Method for Youngs Modulus, Shear Modulus, and Poissons Ratio for Glass and Glass-Ceramics by Resonance
D116 Test Methods for Vitrified Ceramic Materials for Electrical Applications
D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D618 Practice for Conditioning Plastics for Testing
D1711 Terminology Relating to Electrical Insulation
D1829 Test Method for Electrical Resistance of Ceramic Materials at Elevated Temperatures
D2149 Test Method for Permittivity (Dielectric Constant) And Dissipation Factor Of Solid Dielectrics At Frequencies To 10 MHz And Temperatures To 500C
D2520 Test Methods for Complex Permittivity (Dielectric Constant) of Solid Electrical Insulating Materials at Microwave Frequencies and Temperatures to 1650C
E6 Terminology Relating to Methods of Mechanical Testing
E12 Terminology Relating to Density and Specific Gravity of Solids, Liquids, and Gases
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
E165/E165M Practice for Liquid Penetrant Testing for General Industry
E228 Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer
F19 Test Method for Tension and Vacuum Testing Metallized Ceramic Seals
F77 Test Method for Apparent Density of Ceramics for Electron Device and Semiconductor Application
F109 Terminology Relating to Surface Imperfections on Ceramics
F134 Test Methods for Determining Hermeticity of Electron Devices with a Helium Mass Spectrometer Leak Detector
Other StandardsMIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes Available from U.S. Government Printing Office, Superintendent of Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://www.access.gpo.gov.
ICS Number Code 29.035.30 (Glass and ceramic insulating materials); 81.060.20 (Ceramic products)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D2442-75(2020), Standard Specification for Alumina Ceramics for Electrical and Electronic Applications, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top