Centre National De La Recherche Scientifique

Alain Rouault

Roland Madar

Daniel Fruchart

Claude Bernard

Robert Fruchart

Daniel Boursier

Pierre Taunier

Elisabeth Blanquet

Philippe L'Heritier

Anne-Marie Dutron

Patrick Chaudouet

A method for forming a Ti,Al,N coating on a part without plasma enhancement, wherein a chemical vapor deposition chamber is heated to 250-500&deg; C.; the part to be coated is heated to 550-650&deg; C. and placed in said chamber; and a mixture of titanium and aluminium chlorides, NH,and H,is injected into the chamber. The molar amount of NH,is greater than the molar amount of chlorides, and the molar amount of hydrogen is over five times greater than the molar amount of chlorides.

Non-plasma CVD method and apparatus of forming Ti1-xA1xN coatings

New magnetic hydride Nd.sub.2 Fe.sub.14 BH.sub.x (0&lt;x&lt;5) and family corresponding to other rare earths and yttrium. Possible substitution of Fe by Co. Preparation from Nd.sub.2 Fe.sub.14 B by hydrogenation (ambient temperature; pH.sub.2 &gt;20 bar), which can be reversed to give powdered Nd.sub.2 Fe.sub.14 B. Remarkable magnetic properties.

Magnetic rare earth/iron/boron and rare earth/cobalt/boron hydrides, the

Growing community of inventors

Poisat, France

Alain Rouault