GB1064572A - Creation of Inventions and Patents with Artificial Intelligence

GB1064572A – Improvements in method of forming a graphite sheet
– Google Patents

GB1064572A – Improvements in method of forming a graphite sheet
– Google Patents
Improvements in method of forming a graphite sheet

Info

Publication number
GB1064572A

GB1064572A
GB46889/63A
GB4688963A
GB1064572A
GB 1064572 A
GB1064572 A
GB 1064572A
GB 46889/63 A
GB46889/63 A
GB 46889/63A
GB 4688963 A
GB4688963 A
GB 4688963A
GB 1064572 A
GB1064572 A
GB 1064572A
Authority
GB
United Kingdom
Prior art keywords
layers
graphite
intercalation
plates
sheets
Prior art date
1962-12-19
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB46889/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

General Electric Co

Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1962-12-19
Filing date
1963-11-27
Publication date
1967-04-05

1963-11-27
Application filed by General Electric Co
filed
Critical
General Electric Co

1967-04-05
Publication of GB1064572A
publication
Critical
patent/GB1064572A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

C—CHEMISTRY; METALLURGY

C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES

C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE

C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products

C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics

C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite

C04B35/536—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite based on expanded graphite or complexed graphite

C—CHEMISTRY; METALLURGY

C01—INORGANIC CHEMISTRY

C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C

C01B32/00—Carbon; Compounds thereof

C—CHEMISTRY; METALLURGY

C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES

C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE

C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products

C04B35/522—Graphite

C—CHEMISTRY; METALLURGY

C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL

C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL

C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture

Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face

Y10T156/1153—Temperature change for delamination [e.g., heating during delaminating, etc.]

Abstract

Graphite sheets are formed by providing a body with a plurality of generally parallel pyrolytic graphite layers, placing said body in contact with an “intercalation” material which penetrates between said layers and decreases the bond strengthen between said layers, and then separating said layers into graphite sheets. The body may be formed of first graphite layers which are separated by second graphite layers formed under different conditions from those operative when said first layers were formed; in which case the “intercalation” material penetrates said second layers and decreases the bond strength between said first and second layers. The “intercalation” material is an element or compound in liquid or gaseous form, the one employed in the examples being concentrated H2SO4 containing a small amount of HNO3. The graphite body may be formed on plates 25 in the apparatus shown in Fig. 1, by admitting a carbonaceous gas, e.g. CH4, through line 21, and maintaining the temperature of the plates and chamber 18 at e.g. 1600 DEG to 2500 DEG C. Carbon vapour is deposited on both sides of the plates. A second graphite layer of different properties may be formed by, e.g., charging the conditions of pressure or temperature or the amount of carbonaceous atmosphere present. Deposition under the different conditions is repeated until a body of the required thickness, e.g. 250 to 2500 m , is formed. The body is then cooled prior to removal from the plates, immersion in the intercalation material and subsequent water-washing or heating and separation into sheets. The body formed on plates 25 may be annealed prior to treatment with the intercalation temperature, e.g. by heating at 2800 DEG to 3800 DEG C. in an inert gas atmosphere in apparatus similar to that of Fig. 1. Examples given describe the production of graphite sheets 25 m thick from a non-annealed graphite body with layers of two different types and from an annealed body with layers formed under constant conditions. In the latter case some of the sheets are pressed together to yield a composite sheet.

GB46889/63A
1962-12-19
1963-11-27
Improvements in method of forming a graphite sheet

Expired

GB1064572A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US245879A

US3297406A
(en)

1962-12-19
1962-12-19
Method of forming pyrolytic graphite sheets

Publications (1)

Publication Number
Publication Date

GB1064572A
true

GB1064572A
(en)

1967-04-05

Family
ID=22928475
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB46889/63A
Expired

GB1064572A
(en)

1962-12-19
1963-11-27
Improvements in method of forming a graphite sheet

Country Status (5)

Country
Link

US
(1)

US3297406A
(en)

CH
(1)

CH477366A
(en)

DE
(1)

DE1471178B2
(en)

GB
(1)

GB1064572A
(en)

SE
(1)

SE312320B
(en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE1447375B2
(en)

1964-10-30
1971-12-02
Magnetfabrik Bonn Gmbh Vorm. Gewerkschaft Windhorst, 5300 Bonn

DIAMAGNETIC BODY FOR FREE BEARINGS

US3885007A
(en)

1969-09-08
1975-05-20
Mc Donnell Douglas Corp
Process for expanding pyrolytic graphite

US3720499A
(en)

1970-03-06
1973-03-13
Westinghouse Electric Corp
Process for producing pyrolytic graphite

JPS53106025A
(en)

1977-02-28
1978-09-14
Pioneer Electronic Corp
Acoustic vibrator and making method thereof

DE3481062D1
(en)

1983-08-31
1990-02-22
Hoxan Kk

DEVICE FOR THE PRODUCTION OF A POLYACETYLENE FILM.

KR100970319B1
(en)

2007-07-24
2010-07-15
신에쓰 가가꾸 고교 가부시끼가이샤
Furnace for fabricating a glass preform or an optical fiber

CN108333863B
(en)

2018-01-26
2019-08-06
陕西师范大学
A kind of cinefilm of bonding tears off device and tears off method

CN111850511B
(en)

2020-08-28
2023-07-11
上海岚玥新材料科技有限公司
Pyrolytic graphite vapor deposition device and process

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US1137373A
(en)

1913-05-29
1915-04-27
Condensite Company Of America
Expanded graphite and composition thereof.

US1191383A
(en)

1913-05-29
1916-07-18
Condensite Company Of America
Expanded graphite.

US3107180A
(en)

1961-01-26
1963-10-15
Gen Electric
Process for deposition of pyrolytic graphite

1962

1962-12-19
US
US245879A
patent/US3297406A/en
not_active
Expired – Lifetime

1963

1963-11-27
GB
GB46889/63A
patent/GB1064572A/en
not_active
Expired

1963-12-18
CH
CH1562163A
patent/CH477366A/en
not_active
IP Right Cessation

1963-12-18
DE
DE19631471178
patent/DE1471178B2/en
not_active
Withdrawn

1963-12-19
SE
SE14221/63A
patent/SE312320B/xx
unknown

Also Published As

Publication number
Publication date

US3297406A
(en)

1967-01-10

SE312320B
(en)

1969-07-14

DE1471178A1
(en)

1969-01-16

DE1471178B2
(en)

1972-03-02

CH477366A
(en)

1969-08-31

Contact information