研削された部分安定化ジルコニア（Ｙ‐ＴＺＰ）の曲げ強度

• 鈴木 賢治

• 田中 啓介

• 坂井田 喜久

• 小島 学

書誌事項

タイトル別名

• Bending Strength of Ground Y-TZP.
• ケンサクサレタ ブブン アンテイカ ジルコニア Y TZP ノ マゲ キョウド

抄録

Specimens of tetragonal zirconia containing 3 mol % Y₂O₃ (Y-TZP) were ground with a diamond wheel of grain number 200/230. The residual stress and the monoclinic content were measured by the X-ray diffraction method. The bending stress was applied in the directions parallel and perpendicular to the grinding direction of the specimen. The residual stress on the ground surface was compressive, and the compression zone extended to about 30 μm in depth. The monoclinic content on the ground surface was raised to 7 to 8 percent. The bending strength increased in both directions because of the residual compressive stress near the surface introduced by grinding. For ground specimens, defects at the nucleation site of bending fracture were pores or coarse grains, but not grinding defects. Since the lower content of Y₂O₃ near the nucleation site raised the toughness of the material, the fracture toughness for fracture from small defects was larger than that of the single edge precracked specimen. The increase in the Weibull modulus due to grinding was discussed on the basis of fracture mechanics.

収録刊行物

• 日本機械学会論文集Ａ編

  日本機械学会論文集Ａ編 59 (561), 1353-1359, 1993

  一般社団法人 日本機械学会

キーワード

• Ceramics
• Fracture Mechanics
• Residual Stress
• Zirconia
• Grinding
• Bending Strength
• X-Ray Stress Measurement

詳細情報

• CRID: 1390001204419021056
• NII論文ID: 10004150953
• NII論文ID: 110002371542
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.59.1353
• ISSN: 18848338
• ISSN: 03875008
• ISSN: http://id.crossref.org/issn/03875008
• HANDLE: 10191/5706
• NDL書誌ID: 3825483
• Web Site: https://niigata-u.repo.nii.ac.jp/records/3690
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3825483
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/59/561/59_561_1353/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可