JPS5562896A - Purplish red forsterite single crystal and production thereof - Google Patents

Purplish red forsterite single crystal and production thereof

Info

Publication number
JPS5562896A
JPS5562896A JP13432478A JP13432478A JPS5562896A JP S5562896 A JPS5562896 A JP S5562896A JP 13432478 A JP13432478 A JP 13432478A JP 13432478 A JP13432478 A JP 13432478A JP S5562896 A JPS5562896 A JP S5562896A
Authority
JP
Japan
Prior art keywords
zone
crystal
single crystal
rodlike
mgo
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.)
Granted
Application number
JP13432478A
Other languages
Japanese (ja)
Other versions
JPS6128638B2 (en
Inventor
Hironao Kojima
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP13432478A priority Critical patent/JPS5562896A/en
Publication of JPS5562896A publication Critical patent/JPS5562896A/en
Publication of JPS6128638B2 publication Critical patent/JPS6128638B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE: To easily produce a purplish red forsterite single crystal free from a bubble, an inclusion, etc. by melting a high density rodlike sintered raw material consisting of a specified amt. of MgO, SiO2 and CoO with infrared rays followed by crystallization on the interfacae of the molten part.
CONSTITUTION: Halogen lamp 2 is set at one focus of spheroidal mirror 1, and high density rodlike sintered raw material 3 consisting of MgO 5W80mol%, SiO2 50W 20mol% and Co 0.01W80mol% at the other focus. Material 3 and seed crystal 5 are fixed to upper and lower rotary shafts 4, 6, respectively, and they are sealed in transparent quartz tube 7. Infrared rays from lamp 2 are concentrated on the tip of material 3 to form melting zone 8, and by moving crystal 5 upward it is contacted to zone 8. After an equilibrium state is attained, by moving shafts 4, 6 material 3 is melted at the interface betweek zone 8 and material 3, and crystallization takes place at the interface between zone 8 and crystal 5.
COPYRIGHT: (C)1980,JPO&Japio
JP13432478A 1978-10-31 1978-10-31 Purplish red forsterite single crystal and production thereof Granted JPS5562896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13432478A JPS5562896A (en) 1978-10-31 1978-10-31 Purplish red forsterite single crystal and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13432478A JPS5562896A (en) 1978-10-31 1978-10-31 Purplish red forsterite single crystal and production thereof

Publications (2)

Publication Number Publication Date
JPS5562896A true JPS5562896A (en) 1980-05-12
JPS6128638B2 JPS6128638B2 (en) 1986-07-01

Family

ID=15125647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13432478A Granted JPS5562896A (en) 1978-10-31 1978-10-31 Purplish red forsterite single crystal and production thereof

Country Status (1)

Country Link
JP (1) JPS5562896A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61266397A (en) * 1985-05-21 1986-11-26 Mitsui Mining & Smelting Co Ltd Single crystal for ornamental synthetic forsterite
CN114011337A (en) * 2021-11-09 2022-02-08 中国科学院地球化学研究所 Preparation method of low-titanium dry forsterite single crystal under high-temperature and high-pressure conditions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61266397A (en) * 1985-05-21 1986-11-26 Mitsui Mining & Smelting Co Ltd Single crystal for ornamental synthetic forsterite
CN114011337A (en) * 2021-11-09 2022-02-08 中国科学院地球化学研究所 Preparation method of low-titanium dry forsterite single crystal under high-temperature and high-pressure conditions

Also Published As

Publication number Publication date
JPS6128638B2 (en) 1986-07-01

Similar Documents

Publication Publication Date Title
FI893898A (en) FOERFARANDE FOER FRAMSTAELLNING AV GLAS AV RAOAEMNESBLANDNINGAR.
GB2075967B (en) Improvements in or relating to the manufacture of crucibles of transparent fused silica
JPS57116304A (en) Optical fiber for infrared and its production
JPS5562896A (en) Purplish red forsterite single crystal and production thereof
AU5910980A (en) Manufacture of molten glass
JPS5562891A (en) Green forsterite single crystal and production thereof
JPS5562889A (en) Colored chrysolite group single crystal
JPS5562890A (en) Production of alexandrite single crystal
JPS523285A (en) Bonding method of glass material and capsule material constituting gla ss electric bulb
SE7806274L (en) PROCEDURE AND MELTING WATER FOR MAKING GLASS
JPS5562884A (en) Chrysoberyl single crystal showing cat's-eye effect and production thereof
JPS5379913A (en) Novel method of melting glass
JPS5414399A (en) Production of beryl single crystal
JPS5414250A (en) Production of fiber base material for optical communication
JPS5562885A (en) Production of single crystal
JPS546900A (en) Production of clean beryl single crystal
JPS57135794A (en) Method of growing crystal of low-melting oxide
JPS5556094A (en) Production of single crystal
AU524094B2 (en) Glass melting furnace
JPS5556090A (en) Production of single crystal
JPS55126596A (en) Production of single crystal
SU566778A1 (en) Melting pot for producing quartz glass
JPS5590498A (en) Single crystal producing device
Hench CERAMICS AND THE CHALLENGE OF CHANGE.
JPS5542284A (en) Production of single crystal