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1992 Fiscal Year Final Research Report Summary

New Development of Powder Diffraction

Research Project

Project/Area Number 03302059
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 結晶学
Research InstitutionNagoya University

Principal Investigator

SAKATA Makoto  Nagoya Univ.,Applied Phys.,Assoc.Prof.,, 工学部, 助教授 (40135306)

Co-Investigator(Kenkyū-buntansha) ASANO H  Tsukuba Univ.,Material Eng.,Prof.,, 物質工学系, 教授 (90005934)
YAMANAKA T  Osaka Univ.,General Educ.,Prof.,, 教養部, 教授 (30011729)
TORAYA H  Nagoya Inst.Tech.,Ceramics Research Lab.,Assoc.Prof.,, セラミックス研究施設, 助教授 (20143662)
TAKATA M  Nagoya Univ.,Applied Phys.,Assist.Prof.,, 工学部, 助手 (60197100)
HARADA J  Nagoya Univ.,Applied Phys.,Prof.,, 工学部, 教授 (80016071)
Project Period (FY) 1991 – 1992
KeywordsX-Ray Powder Diffraction / Neutron Powder Diffraction / Rietveld Method / Maximum Entropy Method / Synchrotron Radiation / Pattern Decomposition / Crystal Structure Analysis / High Tc Super Conductor
Research Abstract

This research project was performed by two research meeting held in each year. Over all, 34 lectures were given. As new methods to analyze powder diffraction data, the results of Rietveld method of some high Tc super conductors were given. Furthermore, the Powder Pattern Decomposition, Maximum Entropy Method were applied to some simple materials. Various experimental techniques are also introduced, such as X-ray Diffraction by Laboratory X-ray source, Synchrotron radiation, Neutron powder diffraction by either a reactor or a pulse source. Through many experimental results it was shown that modern powder diffraction is a very powerful tool for a structural study of materials.

  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] M.Sakata: "Electron Density in Rutile(Ti0_2) by the Maximum Entropy Method." Acta Cryst.B48. 591-598 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Sakata: "Maximum-Entropy-Method Analysis of Neutron Diffraction Data" J.Appl.Cryst.26. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Uno: "Electron Distribution in Sone Zincblende-type Crystals." Z.Naturforsch.48. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Toraya: "Accurate Determination of Init-Cell Parameters Ising Conventional X-Ray Powder Diffractometry" Advances in X-Ray Analysis,. 35. 431-438 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Yamanaka: "Kinetic Study of the Ge0_2 Transition under High Pressures Using Synchrotron X-Radiation." J.Appl.Cryst.25. 11-15 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 泉 富士夫: "超伝導酸化物の結化化学と圧力誘起構造変化-最近の話題" 日本結化学会誌,. 34. 290-297 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Sakata: "Electron Density in Rutile(TiO_2) by the Maximum Entropy Method." Acta Cryst. B48. 591-598 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Sakata: "Maximum-Entropy-Method Analysis of Neutron Diffraction Data" J.Appl.Cryst. 26. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Takata: "High Resolution X-Ray Powder Diffraction by the Combination of Synchrotron Radiation and Imaging Plate to Observe Electron Distribution by The Maximum Entropy Method." Advances in X-Ray Analysis. 35. 85-90 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Takata: "The Electron Density Distribution in Be Metal Obtained from Synchrotron- Radiation Powder Data by the Maximum- Entropy Method." Z. Naturforsch. 48a. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] R.Uno: "Electron Distribution in Some Zincblende-type Crystals." Z.Naturforsch.48. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Yukino: "Scanning X-Ray Diffract-Microscope/ X-Ray Powder Diffractometer Using Converged X-Ray Beam." Advances in X-Ray Analysis. 35. 1275-1283 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Toraya: "Accurate Determination of Unit-Cell Parameters Using Conventional X-Ray Powder Diffractometry" Advances in X-Ray Analysis. 35. 431-438 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Yamanaka: "Structure Refinement of GeO_2 Polymorphs and Temperatures by Energy-Dispersive Spectra of Powder Diffraction." J.Appl.Cryst. 24. 111-118 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Hiraguchi: "Structure of a High-Pressure Polymorph of Mg_3BN_3 Determined from X-Ray Powder Data." Acta Cryst. B49. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Ishigaki: "Structural Changes and Redistribution of Holes by Sr-Doping in YBa_2Cu_4O_8" Physica C. 191. 441-449 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.Izumi: "Structural Studies of High-Tc Super-conductors by Neutron Powder Diffraction" Physica C. 190. 35-38 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Miyazaki: "Preparation and Crystal Structure of Sr_2CuO_2(CO_3)." Physica C. 191(1-7). 434-440 (1992)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1994-03-24  

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