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Formation and hot isostatic pressing of ZrO sub 2 solid solution in the system ZrO sub 2 -Al sub 2 O sub 3
In the system of ZrO sub 2 -Al sub 2 O sub 3 , cubic ZrO sub 2 solid solutions containing up to 40 mol% Al sub 2 O sub 3 crystallize at low temperatures from amorphous materials prepared by the simultaneous hydrolysis of zirconium and aluminium alkoxides. At higher temperatures, they transform into...
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| Published in: | Journal of materials science 1994-09, Vol.29 (18), p.4913-4917 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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| container_end_page | 4917 |
| container_issue | 18 |
| container_start_page | 4913 |
| container_title | Journal of materials science |
| container_volume | 29 |
| creator | Yamaguchi, O Inamura, S Miyamoto, H Imaida, Y Takagawa, M Hirota, K |
| description | In the system of ZrO sub 2 -Al sub 2 O sub 3 , cubic ZrO sub 2 solid solutions containing up to 40 mol% Al sub 2 O sub 3 crystallize at low temperatures from amorphous materials prepared by the simultaneous hydrolysis of zirconium and aluminium alkoxides. At higher temperatures, they transform into tetragonal solid solutions. Metastable ZrO sub 2 solid solution powders containing 25 mol% Al sub 2 O sub 3 have been sintered at 1000-1150 deg C under 196 MPa using the hot isostatic pressing technique. The solid solution ceramics consisting of homogeneous microstructure with an average grain size of approx50 nm exhibited a very high fracture toughness of 23 MN m exp -1.5 . They have been characterized by x-ray diffraction and electron probe surface analyses. |
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At higher temperatures, they transform into tetragonal solid solutions. Metastable ZrO sub 2 solid solution powders containing 25 mol% Al sub 2 O sub 3 have been sintered at 1000-1150 deg C under 196 MPa using the hot isostatic pressing technique. The solid solution ceramics consisting of homogeneous microstructure with an average grain size of approx50 nm exhibited a very high fracture toughness of 23 MN m exp -1.5 . 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| ispartof | Journal of materials science, 1994-09, Vol.29 (18), p.4913-4917 |
| issn | 0022-2461 |
| language | eng |
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| source | Springer Online Journal Archives |
| title | Formation and hot isostatic pressing of ZrO sub 2 solid solution in the system ZrO sub 2 -Al sub 2 O sub 3 |
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