Abstract
Abstract An ultrasonic welding method has been applied to the joining of ceramic suspensions suitable for injection moulding, extrusion or other plastic forming operations in order that greater complexity of form can be achieved. Scanning electron microscopy shows that interfaces free from welding defects after binder removal and sintering can be obtained. However, considerable difficulties were experienced in welding the highly filled suspensions and these are discussed in terms of ultrasonic attenuation, enhanced thermal diffusivity and changes in coefficient of friction. The feasibility of the method has been established but it has not been optimized.
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