ASTM C1145-19
(Terminology)Standard Terminology of Advanced Ceramics
Standard Terminology of Advanced Ceramics
SCOPE
1.1 This terminology contains definitions and explanatory notes for the principal words, phrases, and terms used in advanced ceramics technology. The given definitions are technology specific and are directly applicable to the design, production, testing, analysis, characterization, and use of advanced ceramics for structural, electronic, coating, energy, chemical, nuclear, biomedical, and environmental applications.
1.2 The purpose of the standard terminology is to provide a collected technical resource and reference that promotes a common understanding of the principal technical terms used within the advanced ceramics community and encourages the use of uniform terminology in specifications and reports.
1.3 Definitions of terms appear in dictionary-definition form and include the term, part of speech (for example, n = noun; v = verb; adj = adjective), definition, and, when applicable, a delimiting phrase. Terms representing physical quantities have analytical dimensions stated immediately following the term (or letter symbol) in fundamental dimension form, using the following ASTM standard symbology for fundamental dimensions, shown within square brackets: [M] for mass, [L] for length, [T] for time, [θ] for thermodynamic temperature, and [nd] for non-dimensional quantities. Use of these symbols is restricted to analytical dimensions when used with square brackets, as the terms may have other definitions when used without the brackets.
1.4 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.
General Information
Relations
Standards Content (Sample)
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.
Designation: C1145 − 19
Standard Terminology of
1
Advanced Ceramics
This standard is issued under the fixed designation C1145; 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 adhesive failure, n—detachment and separation of a coating
from the substrate with cracking and debonding at the
1.1 This terminology contains definitions and explanatory
coating-substrate interface. (C1624)
notes for the principal words, phrases, and terms used in
advanced ceramics technology. The given definitions are tech-
adsorbate,n—materialthathasbeenretainedbytheprocessof
nology specific and are directly applicable to the design,
adsorption. (C1274)
production, testing, analysis, characterization, and use of
adsorbent, n—any solid having the ability to concentrate
advanced ceramics for structural, electronic, coating, energy,
significant quantities of other substances on its surface.
chemical, nuclear, biomedical, and environmental applications.
(C1274)
1.2 The purpose of the standard terminology is to provide a
collected technical resource and reference that promotes a
adsorption, n—process in which molecules are concentrated
common understanding of the principal technical terms used
onasurfacebychemicalorphysicalforces,orboth. (C1274)
within the advanced ceramics community and encourages the
adsorption isotherm, n—relation between the quantity of
use of uniform terminology in specifications and reports.
adsorbate and the equilibrium (relative) pressure of the
1.3 Definitionsoftermsappearindictionary-definitionform
adsorptive, at constant temperature. (C1274)
and include the term, part of speech (for example, n = noun;
DISCUSSION—Typically, the amount adsorbed is presented on an
v = verb; adj = adjective), definition, and, when applicable, a 3
isotherm as volume in cm STP (Standard Temperature and Pressure,
delimiting phrase. Terms representing physical quantities have
that is, 273.15 K and 101325.02 Pa) normalized per mass of sample.
analytical dimensions stated immediately following the term
adsorptive, n—any substance available for adsorption.
(or letter symbol) in fundamental dimension form, using the
(C1274)
following ASTM standard symbology for fundamental
dimensions, shown within square brackets: [M] for mass, [L]
advanced ceramic,n—ahighlyengineered,highperformance,
for length, [T] for time, [θ] for thermodynamic temperature,
predominately non-metallic, inorganic, ceramic material
and [nd] for non-dimensional quantities. Use of these symbols
having specific functional attributes. (C1198, C1259,
is restricted to analytical dimensions when used with square
C1292, C1322, C1368, C1525, C1576, C1674)
brackets, as the terms may have other definitions when used
agglomerate, n—as used in fractography, a cluster of grains,
without the brackets.
particles, platelets, or whiskers, or a combination thereof,
1.4 This international standard was developed in accor-
present in a larger solid mass.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
aggregate, n—a dense mass of particles held together by
Development of International Standards, Guides and Recom-
strong intermolecular or atomic cohesive forces. It is stable
mendations issued by the World Trade Organization Technical
to normal handling and ordinary mixing techniques includ-
Barriers to Trade (TBT) Committee.
ing high-speed stirring and ultrasonics. (C242)
2. Terminology
aliquot, n—a representative portion of a whole that divides the
whole leaving a remainder. (C1274)
absorbed moisture, n—water held within the materials and
having physical properties not substantially different from
back-face strain, n—the strain as meaured with a strain gage
ordinary water at the same temperature and pressure.
mounted longitudinally on the compressive surface of the
specimen, opposite the crack or notch mouth (often this is
1
This terminology is under the jurisdiction of ASTM Committee C28 on
the top surface of the specimen as tested). (C1421)
Advanced Ceramics and is the direct responsibility of Subcommittee C28.91 on
Nomenclature and Editorial.
base exchange, n—a surface property exhibited by collodial
Current edition approved July 1, 2019. Published July 2019. Originally approved
inorganic materials, usually clays, whereby absorbed surface
in 1989. Last previous edition approved in 2013 as C1145 – 06 (2013). DOI:
10.1520/C1145-19. cations are replaced by oth
...
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.
´1
Designation: C1145 − 06 (Reapproved 2013) C1145 − 19
Standard Terminology of
1
Advanced Ceramics
This standard is issued under the fixed designation C1145; 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
ε NOTE—New definitions were added editorially in July 2018.
1. Scope
1.1 This terminology contains definitions and explanatory notes for the principal words, phrases, and terms used in advanced
ceramics technology. The given definitions are technology-specific technology specific and are directly applicable to the design,
production, testing, analysis, characterization, and use of advanced ceramics for structural, electronic, coating, energy, chemical,
nuclear, biomedical, and environmental applications.
1.2 The purpose of the standard terminology is to provide a collected technical resource and reference that promotes a common
understanding of the principal technical terms used within the advanced ceramics community and encourages the use of uniform
terminology in specifications and reports.
1.3 Definitions of terms appear in dictionary-definition form and include the term, part of speech (for example, n = noun; v =
verb; adj = adjective), definition, and, when applicable, a delimiting phrase. Terms representing physical quantities have analytical
dimensions stated immediately following the term (or letter symbol) in fundamental dimension form, using the following ASTM
standard symbology for fundamental dimensions, shown within square brackets: [M] for mass, [L] for length, [T] for time, [θ] for
thermodynamic temperature, and [nd] for non-dimensional quantities. Use of these symbols is restricted to analytical dimensions
when used with square brackets, as the terms may have other definitions when used without the brackets.
1.4 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. Terminology
absorbed moisture, n—water held within the materials and having physical properties not substantially different from ordinary
water at the same temperature and pressure.
adhesive failure, n—detachment and separation of a coating from the substrate with cracking and debonding at the
coating-substrate interface. (C1624)
adsorbate, n—material that has been retained by the process of adsorption. (C1274)
adsorbent, n—any solid having the ability to concentrate significant quantities of other substances on its surface. (C1274)
adsorption, n—process in which molecules are concentrated on a surface by chemical or physical forces, or both. (C1274)
adsorption isotherm, n—relation between the quantity of adsorbate and the equilibrium (relative) pressure of the adsorptive, at
constant temperature. (C1274)
DISCUSSION—
3
Typically, the amount adsorbed is presented on an isotherm as volume in cm STP (Standard Temperature and Pressure, that is, 273.15 K and 101325.02
Pa) normalized per mass of sample.
adsorptive, n—any substance available for adsorption. (C1274)
1
This terminology is under the jurisdiction of ASTM Committee C28 on Advanced Ceramics and is the direct responsibility of Subcommittee C28.91 on Nomenclature
and Editorial.
Current edition approved Feb. 1, 2013July 1, 2019. Published March 2013July 2019. Originally approved in 1989. Last previous edition approved in 20062013 as
C1145 – 06.C1145 – 06 (2013). DOI: 10.1520/C1145-06R13E01.10.1520/C1145-19.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1145 − 19
advanced ceramic, n—a highly engineered, high performance, predominately non-metallic, inorganic, ceramic material having
specific functional attributes. (C1198, C1259, C1292, C1322, C1368, C1525, C1576, C1674)
agglomerate, n—as used in fractography, a cluster of grains, particles, platelets, or whiskers, or a combination thereof, present
in a larger solid mass.
aggregate, n—a dense mass of particles held together by strong intermolecular or atomic cohesive forces. It is stable to normal
handling and ordinary mixing techniques including high-speed stirrin
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.