Conclusions
An investigation was carried out into the kinetics of the densification of LaB6 powder with and without a nickel addition. The effects of temperature, applied pressure, and holding time on the relative densities of the alloyed and unalloyed powders were determined. The results obtained are analyzed within the framework of the theory of volume viscous flow of a porous crystalline solid. It has been established that porous lanthanum hexaboride with and without a nickel alloying addition experiences densification as a result of creep of material controlled by dislocation slip. The energies of activation for creep of these materials and their Laplacian pressures were estimated.
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Translated from Poroshkovaya Metallurgiya, No. 6(234), pp. 16–21, June, 1982.
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Kondrashev, A.I., Paderno, Y.B. & Paderno, V.N. Kinetics of the densification of lanthanum hexaboride powder with and without a nickel addition during hot pressing. Powder Metall Met Ceram 21, 437–441 (1982). https://doi.org/10.1007/BF00801750
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DOI: https://doi.org/10.1007/BF00801750