The trapping of pores and liquid within growing grains during liquid phase sintering has been studied in a 97Mo–3Ni alloy. The growth patterns of grains around pores and liquid drops are revealed by an etching technique, following a sintering treatment involving periodic cooling to 1300°C from the sintering temperature of 1460°C. Pores can be trapped within adjacent growing grains when they are not eliminated by being filled with liquid. Liquid drops can form during grain growth by Ostwald ripening. The droplets may form within small pores which become filled by liquid while being trapped within adjacent growing grains. Coalescence of grains is not observed during pore and liquid entrapment. PM/0332
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