The strength and fracture of fully dense polycrystalline magnesium oxide
- 1 August 1969
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 20 (164) , 373-388
- https://doi.org/10.1080/14786436908228708
Abstract
The fracture of fully dense, polycrystalline MgO with grain sizes 10 to 500μm, has been studied. Specimens had chemically polished, machined or annealed surfaces. Fracture in chemically polished specimens is initiated by plastic flow, whilst that in machined specimens occurs by the extension of the flaws produced by machining. The fracture of annealed specimens is either initiated by plastic flow or occurs by the extension of the surface flaws, depending on the grain size. The implications of these observations to the strengthening of ceramics are considered.Keywords
This publication has 13 references indexed in Scilit:
- Mechanical properties of ceramic materialsContemporary Physics, 1969
- Surface-diffusion studies on UO2 and MgOJournal of Materials Science, 1968
- Irradiation damage and irradiation hardening in single crystal MgO after low neutron doses < 1018 nvt (>1 MeV)Journal of Nuclear Materials, 1968
- The distribution of iron impurity in single-crystal magnesium oxide and some effects on mechanical propertiesJournal of Materials Science, 1967
- Influence of Surface Condition on the Strength of Polycrystalline MgOJournal of the American Ceramic Society, 1964
- Fracture strength of MgO bicrystalsPhilosophical Magazine, 1964
- Dislocations and the Tensile Strength of Magnesium OxideJournal of the American Ceramic Society, 1963
- Effect of Grain Size on Transverse Bend Strength of Alumina and MagnesiaJournal of the American Ceramic Society, 1963
- Mechanisms of microcrack growth in magnesium oxide crystalsPhilosophical Magazine, 1962
- Metal‐Ceramic Interactions:IV, Absolute Measurement of Metal‐Ceramic Interfacial Energy and the Interfacial Adsorption of Silicon from Iron‐Silicon AlloysJournal of the American Ceramic Society, 1954