ELABORATION PROCESS OF REFRACTORY MATERIALS BY REACTIVE PROJECTION OF OXIDE, PEROXIDE AND METALS M. PILATTI, J. CRANSVELD, G. RAYMOND, E. PLUMAT and P.H. DUVIGNEAUD J. Phys. Colloques, 47 C1 (1986) C1-159-C1-163 DOI: 10.1051/jphyscol:1986123