Ebook: Ultrafine-Grain Ceramics

The Army Materials and Mechanics Research Center has conducted the Saga­ more Army Materials Research Conferences, in cooperation with the Metallurgi­ cal Research Laboratories of the Department of Chemical Engineering and Metallurgy of Syracuse University, since 1954. The purpose of the conferences has been to gather together scientists and engineers from academic institutions, industry, and government who are uniquely qualified to explore in depth a sub­ ject of importance to the Army, the Department of Defense and the scientific community. Grain size and its control is a major factor governing the behavior of materi­ als. Knowledge that one can obtain grain sizes in the 10 micron down to sub­ micron range has established the basis for a new technology. This volume, Ultrafine-Grain Ceramics, addresses itself to the broad areas of: realization of fine-grain ceramics; preparation of ultrafine particle size materials; characterization of ultrafine particles and ultrafine-grain ceramics; processing and behavior of ultra fine-grain ceramics. The technical advice provided by Dr. S. K. Dutta of the Army Materials and Mechanics Research Center during the editing of this book is acknowledged. The continued active interest and support of these conferences by Dr. E. Scala, Director, Lt. Col. Joseph B. Mason, Commanding Officer, and J. F. Sullivan, Deputy Technical Director, of the Army Materials and Mechanics Re­ search Center is appreciated.

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Content:
Front Matter....Pages i-x
Front Matter....Pages 1-1
Realization of Fine-Grain Ceramics....Pages 3-14
Front Matter....Pages 15-15
Fine Grinding—Size Distribution, Particle Characterization, and Mechanical Methods....Pages 17-37
Preparation of Ultrafine Particles of Metal Oxides....Pages 39-60
Front Matter....Pages 61-61
On The Problems of Characterizing Fine Powders....Pages 63-71
Optimum Procedures for Determining Ultrafine-Grain Sizes....Pages 73-98
The Role of Composition in Ultrafine-Grain Ceramics....Pages 99-107
Microstructure of Fine-Grain Ceramics....Pages 109-133
Front Matter....Pages 135-135
Fine Particulates to Ultrafine-Grain Ceramics....Pages 137-172
Solid-State Sintering....Pages 173-183
Determination of an Effective Viscosity of Powders as a Function of Temperature....Pages 185-202
Hot Forming of Ceramics....Pages 203-250
Superplasticity in Ceramics....Pages 251-271
Ultrafine-Grain Ceramics from Melt Phase....Pages 273-294
Front Matter....Pages 295-295
Proposed Theory for the Static Fatigue Behavior of Brittle Ceramics....Pages 297-315
Crack Propagation in Polycrystalline Ceramics....Pages 317-338
Plastic Deformation in Fine-Grain Ceramics....Pages 339-365
Electrical and Magnetic Behavior of Ultrafine-Grain Ceramics....Pages 367-389
Back Matter....Pages 391-406

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Content:
Front Matter....Pages i-x
Front Matter....Pages 1-1
Realization of Fine-Grain Ceramics....Pages 3-14
Front Matter....Pages 15-15
Fine Grinding—Size Distribution, Particle Characterization, and Mechanical Methods....Pages 17-37
Preparation of Ultrafine Particles of Metal Oxides....Pages 39-60
Front Matter....Pages 61-61
On The Problems of Characterizing Fine Powders....Pages 63-71
Optimum Procedures for Determining Ultrafine-Grain Sizes....Pages 73-98
The Role of Composition in Ultrafine-Grain Ceramics....Pages 99-107
Microstructure of Fine-Grain Ceramics....Pages 109-133
Front Matter....Pages 135-135
Fine Particulates to Ultrafine-Grain Ceramics....Pages 137-172
Solid-State Sintering....Pages 173-183
Determination of an Effective Viscosity of Powders as a Function of Temperature....Pages 185-202
Hot Forming of Ceramics....Pages 203-250
Superplasticity in Ceramics....Pages 251-271
Ultrafine-Grain Ceramics from Melt Phase....Pages 273-294
Front Matter....Pages 295-295
Proposed Theory for the Static Fatigue Behavior of Brittle Ceramics....Pages 297-315
Crack Propagation in Polycrystalline Ceramics....Pages 317-338
Plastic Deformation in Fine-Grain Ceramics....Pages 339-365
Electrical and Magnetic Behavior of Ultrafine-Grain Ceramics....Pages 367-389
Back Matter....Pages 391-406
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