Microwave Sintering of Nanophase Ceramics Without Concomitant Grain Growth

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Description

A method of sintering nanocrystalline material is disclosed wherein the nanocrystalline material is microwaved to heat the material to a temperature less than about 70% of the melting point of the nanocrystalline material expressed in degrees K. This method produces sintered nanocrystalline material having a density greater than about 95% of theoretical and an average grain size not more than about 3 times the average grain size of the nanocrystalline material before sintering. Rutile TiO{sub 2} as well as various other ceramics have been prepared. Grain growth of as little as 1.67 times has resulted with densities of about 90% ... continued below

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18 p.

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Eastman, Jeffrey A.; Sickafus, Kurt E. & Katz, Joel D. April 15, 1991.

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Description

A method of sintering nanocrystalline material is disclosed wherein the nanocrystalline material is microwaved to heat the material to a temperature less than about 70% of the melting point of the nanocrystalline material expressed in degrees K. This method produces sintered nanocrystalline material having a density greater than about 95% of theoretical and an average grain size not more than about 3 times the average grain size of the nanocrystalline material before sintering. Rutile TiO{sub 2} as well as various other ceramics have been prepared. Grain growth of as little as 1.67 times has resulted with densities of about 90% of theoretical.

Physical Description

18 p.

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OSTI; NTIS; GPO Dep.

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  • Other Information: PBD: 15 Apr 1991

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  • Other: DE93012020
  • Report No.: PATENTS-US--A7685117
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10147632
  • Archival Resource Key: ark:/67531/metadc1317274

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • April 15, 1991

Added to The UNT Digital Library

  • Nov. 3, 2018, 11:47 a.m.

Description Last Updated

  • March 13, 2019, 1:46 p.m.

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Eastman, Jeffrey A.; Sickafus, Kurt E. & Katz, Joel D. Microwave Sintering of Nanophase Ceramics Without Concomitant Grain Growth, patent, April 15, 1991; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1317274/: accessed March 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.