GB1383071A - Semiconductor ceramic materials and methods of preparation thereof - Google Patents

Semiconductor ceramic materials and methods of preparation thereof

Info

Publication number
GB1383071A
GB1383071A GB1473072A GB1473072A GB1383071A GB 1383071 A GB1383071 A GB 1383071A GB 1473072 A GB1473072 A GB 1473072A GB 1473072 A GB1473072 A GB 1473072A GB 1383071 A GB1383071 A GB 1383071A
Authority
GB
United Kingdom
Prior art keywords
per cent
semi
vanadate
cuprous
conductor
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
GB1473072A
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.)
Novikov V N Egorova T N
Original Assignee
Novikov V N Egorova T N
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 Novikov V N Egorova T N filed Critical Novikov V N Egorova T N
Priority to GB1473072A priority Critical patent/GB1383071A/en
Publication of GB1383071A publication Critical patent/GB1383071A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds
    • H01C7/047—Vanadium oxides or oxidic compounds, e.g. VOx

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

1383071 Semi-conductor ceramic material; vanadium compounds V N NOVIKOV T N EGOROVA and B A TALLERCHIK 29 March 1972 14730/72 Headings C1J and C1A [Also in Division H1] A semi-conductor ceramic material contains particles of vanadium tetroxide or of a solid solution containing predominantly vanadium tetroxide, sintered together by a bonding phase of cuprous vanadate (Cu 3 VO 4 ). The material may contain 5-70 wt. per cent cuprous vanadate. The semi-conductor material may be prepared by heating any of (i) 45-70 wt. per cent V 2 O 5 and 55-30 wt. per cent Cu, (ii) 40-70 wt. per cent V 2 O 5 3-45 wt. per cent V 2 O 3 and 3-40 wt. per cent Cu or (iii) 25-50 wt. per cent V 2 O 5 , 40-45 wt. per cent V 2 O 3 and 7-35 wt. per cent CuO at 600‹ to 900‹ C. In examples the powdered starting batches are ball milled, dried, briquetted and heated at 680‹ C. in a neutral medium under a vacuum of 10<SP>-2</SP> to 10<SP>-7</SP> torr.
GB1473072A 1972-03-29 1972-03-29 Semiconductor ceramic materials and methods of preparation thereof Expired GB1383071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1473072A GB1383071A (en) 1972-03-29 1972-03-29 Semiconductor ceramic materials and methods of preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1473072A GB1383071A (en) 1972-03-29 1972-03-29 Semiconductor ceramic materials and methods of preparation thereof

Publications (1)

Publication Number Publication Date
GB1383071A true GB1383071A (en) 1975-02-05

Family

ID=10046473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1473072A Expired GB1383071A (en) 1972-03-29 1972-03-29 Semiconductor ceramic materials and methods of preparation thereof

Country Status (1)

Country Link
GB (1) GB1383071A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113161470A (en) * 2021-04-09 2021-07-23 河南鸿昌电子有限公司 Material for producing semiconductor refrigeration element, semiconductor crystal grain and refrigeration element
CN113353981A (en) * 2021-07-01 2021-09-07 陕西理工大学 Cu3(VO4)2Preparation method of irregular nanorod

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113161470A (en) * 2021-04-09 2021-07-23 河南鸿昌电子有限公司 Material for producing semiconductor refrigeration element, semiconductor crystal grain and refrigeration element
CN113353981A (en) * 2021-07-01 2021-09-07 陕西理工大学 Cu3(VO4)2Preparation method of irregular nanorod
CN113353981B (en) * 2021-07-01 2023-01-31 陕西理工大学 Cu 3 (VO 4 ) 2 Preparation method of irregular nanorod

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees