A process and apparatus for producing a pressed powder body from at least two different kinds of ultrafine particles. Ultrafine particles of at least two different materials are uniformly mixed together and the mixture is sprayed onto an objective surface whereby the spray pressure causes the particles...http://www.google.es/patents/US4683118?utm_source=gb-gplus-sharePatente US4683118 - Process and apparatus for manufacturing a pressed powder body
Process and apparatus for manufacturing a pressed powder body