Aluminum Oxide and Beryllium Oxide Ceramics — Seal Materials of the Future

1965 ◽  
Author(s):  
L. E. Ferreira ◽  
D. D. Briggs
Keyword(s):  
Aluminum Oxide ◽  
Beryllium Oxide ◽  
Oxide Ceramics ◽  
The Future

Preferred Orientation in Ceramic Materials Due to Forming Techniques

1963 ◽  
Vol 7 ◽  
pp. 174-181 ◽  
Author(s):  
Joseph L. Pentecost ◽  
Charles H. Wright
Keyword(s):  
Aluminum Oxide ◽  
Pole Figure ◽  
Slip Casting ◽  
Beryllium Oxide ◽  
Ceramic Materials ◽  
Preferred Orientation ◽  
Oxide Ceramics ◽  
Surface Contaminants ◽  
Pole Figures ◽  
Dry Pressing

AbstractAccurate measurement of the electrical and mechanical properties of polycrystalline oxide ceramics has revealed anisotropy in a number of properties. The source of this anisotropy may be attributed to a number of causes, however, with oxides having anisotropic crystals, preferred orientation of the crystallites may be suspected. Aluminum oxide and beryllium oxide ceramics samples of high purity and density were formed by slip casting, dry pressing, isostatic pressing, and extrusion. Pole figures for the (113), (110) and (030) planes in aluminum oxide and (100) and (103) planes in beryllium oxide were prepared by using a Siemens automatic pale figure goniometer.It was found that both slip-cast oxide samples and dry-pressed aluminum oxide samples and dry-pressed beryllium oxide samples showed sufficient preferred orientation to prepare a pole figure from the data. The actual preferential orientation of the crystallites in these two oxides is discussed and the pole figure information presented. The effect of furnace atmosphere and surface contaminants on re crystallization at an exposed surface is covered briefly.

Green Machining of Aluminum Oxide Ceramics

2007 ◽  
pp. 371-376 ◽  
Author(s):  
Fritz Klocke ◽  
Dietmar Phler ◽  
Christoph Schippers ◽  
Christian Schmidt
Keyword(s):  
Aluminum Oxide ◽  
Oxide Ceramics ◽  
Green Machining

Design of porous aluminum oxide ceramics using magnetic field-assisted freeze-casting

2020 ◽  
Vol 35 (21) ◽  
pp. 2859-2869
Author(s):  
Said Bakkar ◽  
Jihyung Lee ◽  
Nicholas Ku ◽  
Diana Berman ◽  
Samir M. Aouadi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Aluminum Oxide ◽  
Oxide Ceramics ◽  
Freeze Casting ◽  
Porous Aluminum ◽  
Porous Aluminum Oxide

Abstract

Delayed fracture of aluminum oxide ceramics with a borosilicate vitreous phase

Refractories ◽  
1996 ◽  
Vol 37 (12) ◽  
pp. 436-438
Author(s):  
S. M. Barinov ◽  
S. V. Orlov ◽  
V. Ya. Shevchenko ◽  
N. V. Ivanov
Keyword(s):  
Aluminum Oxide ◽  
Oxide Ceramics ◽  
Vitreous Phase ◽  
Delayed Fracture
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