ASTM D2442-75(2016)

Standard Specification for Alumina Ceramics for Electrical and Electronic Applications

SCOPE
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 standard 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 the standard. The values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 31-Oct-2016
• ICS: 29.035.30 - Glass and ceramic insulating materials
• ICS: 81.060.20 - Ceramic products
• Technical Committee: C21 - Ceramic Whitewares and Related Products
• Drafting Committee: C21.03 - Methods for Whitewares and Environmental Concerns

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D2442 −75 (Reapproved 2016)
Standard Specification for
Alumina Ceramics for Electrical and Electronic
1
Applications
This standard is issued under the fixed designation D2442; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D150Test Methods forAC Loss Characteristics and Permit-
tivity (Dielectric Constant) of Solid Electrical Insulation
1.1 Thisspecificationcoverstherequirementsforfabricated
D257Test Methods for DC Resistance or Conductance of
alumina parts suitable for electronic and electrical applications
Insulating Materials
and ceramic-to-metal seals as used in electron devices. This
D618Practice for Conditioning Plastics for Testing
standard specifies limits and methods of test for electrical,
D1711Terminology Relating to Electrical Insulation
mechanical, thermal, and general properties of the bodies used
D1829Test Method for Electrical Resistance of Ceramic
for these fabricated parts, regardless of part geometry.
3
Materials at Elevated Temperatures (Withdrawn 2001)
1.2 The values stated in SI units are to be regarded as the
D2149Test Method for Permittivity (Dielectric Constant)
standard. The values given in parentheses are for information
And Dissipation Factor Of Solid Dielectrics At Frequen-
only.
cies To 10 MHz And Temperatures To 500°C
D2520Test Methods for Complex Permittivity (Dielectric
2. Referenced Documents
Constant) of Solid Electrical Insulating Materials at Mi-
2
2.1 ASTM Standards: crowave Frequencies and Temperatures to 1650°C
C20Test Methods forApparent Porosity, WaterAbsorption, E6Terminology Relating to Methods of Mechanical Testing
Apparent Specific Gravity, and Bulk Density of Burned E12Terminology Relating to Density and Specific Gravity
3
Refractory Brick and Shapes by Boiling Water
of Solids, Liquids, and Gases (Withdrawn 1996)
C108Symbols for Heat Transmission E122PracticeforCalculatingSampleSizetoEstimate,With
C242Terminology of Ceramic Whitewares and Related
Specified Precision, the Average for a Characteristic of a
Products Lot or Process
C408Test Method for Thermal Conductivity of Whiteware
E165Practice for Liquid Penetrant Examination for General
Ceramics Industry
C573Methods for ChemicalAnalysis of Fireclay and High- E228Test Method for Linear Thermal Expansion of Solid
3
Alumina Refractories (Withdrawn 1995) Materials With a Push-Rod Dilatometer
C623Test Method for Young’s Modulus, Shear Modulus, F19Test Method for Tension and Vacuum Testing Metal-
and Poisson’s Ratio for Glass and Glass-Ceramics by lized Ceramic Seals
Resonance F77Test Method for Apparent Density of Ceramics for
D116Test Methods for Vitrified Ceramic Materials for Electron Device and Semiconductor Application (With-
3
Electrical Applications drawn 2001)
D149Test Method for Dielectric Breakdown Voltage and F109Terminology Relating to Surface Imperfections on
DielectricStrengthofSolidElectricalInsulatingMaterials Ceramics
at Commercial Power Frequencies F134Test Methods for Determining Hermeticity of Electron
Devices with a Helium Mass Spectrometer Leak Detector
3
(Withdrawn 1996)
1
F417Test Method for Flexural Strength (Modulus of Rup-
This specification is under the jurisdiction of Committee C21 on Electrical and
3
Electronic Insulating Materials.
ture) of Electronic-Grade Ceramics (Withdrawn 2001)
Current edition approved Nov. 1, 2016. Published November 2016. Originally
2.2 Other Standards:
approved in 1965. Last previous edition approved in 2012 as D2442–75(2012).
DOI: 10.1520/D2442-75R16. MIL-STD-105 Sampling Procedures and Tables for Inspec-
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tion by Attributes
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
The last approved version of this historical standard is referenced on Available from the Superintendent of Documents, Government Printing Office,
www.astm.org. Washington, D.C. 20402.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D2442−75 (2016)
TABLE 2 Mechanical Requirements
MIL-STD-883Test Methods and Procedures for Microelec-
5
tronics Property Type I Type II Type III Type IV
6
ANSIB46.1Surface Texture Flexural strength, 240 275 275 275
A
min avg, (35 000) (40 000) (40 000) (40 000)
MPa (psi)
3. Terminology
Modulus of 215 275 310 345
6 6 6 6
elasticity, min, (31×10 ) (40×10 ) (45×10 ) (50×10 )
3.1 Definitions:
GPa (psi)
3.1.1 The applicable
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D2442 − 75 (Reapproved 2012) D2442 − 75 (Reapproved 2016)
Standard Specification for
Alumina Ceramics for Electrical and Electronic
1
Applications
This standard is issued under the fixed designation D2442; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
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 standard 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 the standard. The values given in parentheses are for information only.
2. Referenced Documents
2
2.1 ASTM Standards:
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
3
C573 Methods for Chemical Analysis of Fireclay and High-Alumina Refractories (Withdrawn 1995)
C623 Test Method for Young’s Modulus, Shear Modulus, and Poisson’s 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
3
D1829 Test Method for Electrical Resistance of Ceramic Materials at Elevated Temperatures (Withdrawn 2001)
D2149 Test Method for Permittivity (Dielectric Constant) And Dissipation Factor Of Solid Dielectrics At Frequencies To 10
MHz And Temperatures To 500°C
D2520 Test Methods for Complex Permittivity (Dielectric Constant) of Solid Electrical Insulating Materials at Microwave
Frequencies and Temperatures to 1650°C
E6 Terminology Relating to Methods of Mechanical Testing
3
E12 Terminology Relating to Density and Specific Gravity of Solids, Liquids, and Gases (Withdrawn 1996)
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or
Process
E165 Practice for Liquid Penetrant Examination 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
3
F77 Test Method for Apparent Density of Ceramics for Electron Device and Semiconductor Application (Withdrawn 2001)
1
This specification is under the jurisdiction of Committee C21 on Ceramic Whitewares and Related Products and is the direct responsibility of Subcommittee Electrical
and Electronic Insulating Materials.C21.03 on Methods for Whitewares and Environmental Concerns.
This specification also includes material and suggestions provided by ASTM Committee D09 on Electrical and Electronic Insulating Materials.
Current edition approved April 1, 2012Nov. 1, 2016. Published April 2012November 2016. Originally approved in 1965. Last previous edition approved in 20072012 as
D2442 – 75 (2012).(2007). DOI: 10.1520/D2442-75R12.10.1520/D2442-75R16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2442 − 75 (2016)
F109 Terminology Relating to Surface Imperfections on Ceramics
F134 Test Methods for Determining Hermeticity of Electron Devices with a Helium Mass Spectrometer Leak Detector
3
(Withdrawn 1996)
3
F417 Test Method
...