ASTM C709-06

Standard Terminology Relating to Manufactured Carbon and Graphite

General Information

• Status: Historical
• Publication Date: 31-Oct-2006
• ICS: 01.040.71 - Chemical technology (Vocabularies)
• ICS: 71.060.10 - Chemical elements
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.F0 - Manufactured Carbon and Graphite Products

Relations

• Replaces: ASTM C709-03a - Standard Terminology Relating to Manufactured Carbon and Graphite
• Effective Date: 01-Nov-2006
• Replaced By: ASTM C709-09 - Standard Terminology Relating to Manufactured Carbon and Graphite (Withdrawn 2017)
• Effective Date: 01-Dec-2009
• Referred By: ASTM C1836-16(2023) - Standard Classification for Fiber Reinforced Carbon-Carbon Composite Structures
• Effective Date: 01-Nov-2006
• Referred By: ASTM C1783-15 - Standard Guide for Development of Specifications for Fiber Reinforced Carbon-Carbon Composite Structures for Nuclear Applications
• Effective Date: 01-Nov-2006

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
An American National Standard
Designation:C709–06
Standard Terminology Relating to
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Manufactured Carbon and Graphite
This standard is issued under the fixed designation C709; 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.
across (or against) grain, n—direction in a body with walls when formed. Cells can be open or closed.
preferred orientation due to forming stresses that has the
DISCUSSION—After processing at high temperatures, the basic struc-
maximum c-axis alignment as measured in an X-ray diffrac-
ture of the cell will remain even as the material converts from a plastic
tion test.
state to a rigid carbonaceous structure. Hence, the term cell will apply
agglomerate, n—in manufactured carbon and graphite prod- to a carbon product.
uct technology, composite particle containing a number of
cell count, n—in carbon and graphite technology, in closed-
grains.
cell foams, number of cells aligned in one plane in one linear
anistropic nuclear graphite, n—graphite in which the isot-
inch, as determined by stereoscopic image analysis.
ropy ratio based on the value of the coefficient of thermal
cell size, n—in carbon and graphite technology, average
expansion (25–500°C) is greater than 1.15.
diameter of the cells in the final foam product.
ash, n—in carbon and graphite technology, residue remaining
closed cell, n—in carbon and graphite technology, cell totally
after oxidation of a carbon or graphite.
enclosed by its walls and hence not interconnected with
binder, n—substance, usually an organic material such as coal
other cells.Aclosed cell foam is a foam consisting predomi-
tar pitch or petroleum pitch, used to bond the coke or other
nantly of closed cells.
filler material prior to baking.
coke, n—carbonaceous solid produced from coal, petroleum,
carbon, n—element, number 6 of the periodic table of ele-
or other materials by thermal decomposition with passage
2 2 2
ments, electronic ground state 1s 2s 2p .
through a plastic state.
carbon, n—in carbon and graphite technology, artifact con-
compressive strength, n—property of solid material that
sisting predominantly of the element carbon and possessing
indicates its ability to withstand a uniaxial compressive load.
limited long range order.
defect, n—of a manufactured carbon or graphite product, any
DISCUSSION—The presence of limited long range order is usually irregularity in the chemistry, microstructure, or macrostruc-
associated with low electrical and thermal conductivity and difficult
ture.
machinability when compared with graphite.
defective, adj—having flaws or dimensional deviations greater
than acceptable for the intended use.
carbon foam, n—in carbon and graphite technology, porous
electrographite, n—in carbon and graphite technology, syn-
carbon product containing regularly shaped, predominantly
onym for manufactured graphite.
concave, homogeneously dispersed cells which interact to
extruded, v—formedbybeingforcedthroughashapingorifice
form a three-dimensional array throughout a continuum
as a continuous body.
material of carbon, predominantly in the non-graphitic state.
filler, n—in manufactured carbon and graphite product tech-
The final result is either an open or closed cell product.
nology, carbonaceous particles comprising the base aggre-
DISCUSSION—In most foam, the cell wall thickness is less than half
gate in an unbaked green-mix formulation.
the average cell size.
flaw, n—defect sufficiently greater than those typical of the
cell (bubble), n—in carbon and graphite technology, single
morphology of a carbon or graphite body to influence a
small cavity formed by gaseous displacement in a precursor
property.
material in its plastic state, and surrounded completely by its
flexural strength, n—property of solid material that indicates
its ability to withstand a flexural or transverse load.
flow line, n—defect induced by discontinuous flow velocities
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during forming of molded or extruded bodies.
This terminology is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
grade, n—designation given a material by a manufacturer such
D02.F0 on Manufactured Carbon and Graphite Products.
that it is always reproduced to the same specifications
Current edition approved Nov. 1, 2006. Published November 2006. Originally
established by the manufacturer.
approved in 1972. Last previous edition approved in 2003 as C709–03a. DOI:
10.1520/C0709-06.
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