GB1001869A - Method of manufacturing single crystals of corundum - Google Patents

Method of manufacturing single crystals of corundum

Info

Publication number
GB1001869A
GB1001869A GB30045/61A GB3004561A GB1001869A GB 1001869 A GB1001869 A GB 1001869A GB 30045/61 A GB30045/61 A GB 30045/61A GB 3004561 A GB3004561 A GB 3004561A GB 1001869 A GB1001869 A GB 1001869A
Authority
GB
United Kingdom
Prior art keywords
corundum
pressure
temperature
single crystals
manufacturing single
Prior art date
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
GB30045/61A
Other languages
English (en)
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.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
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.)
Filing date
Publication date
Application filed by NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Publication of GB1001869A publication Critical patent/GB1001869A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
GB30045/61A 1960-09-30 1961-08-21 Method of manufacturing single crystals of corundum Expired GB1001869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3964360 1960-09-30

Publications (1)

Publication Number Publication Date
GB1001869A true GB1001869A (en) 1965-08-18

Family

ID=12558753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30045/61A Expired GB1001869A (en) 1960-09-30 1961-08-21 Method of manufacturing single crystals of corundum

Country Status (4)

Country Link
BE (1) BE608544A (cs)
CH (1) CH479487A (cs)
GB (1) GB1001869A (cs)
SE (1) SE302601B (cs)

Also Published As

Publication number Publication date
SE302601B (cs) 1968-07-29
BE608544A (fr) 1962-01-15
CH479487A (de) 1969-10-15

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