Alumina short fiber reinforced magnesium alloy having stable oxide binders
AssigneesNissan Motor Co., Ltd., Nichias Corporation
InventorsHarumichi Hino, Mikiya Komatsu, Kenichi Shibata, Mitsushi Wadasako, Junichi Ogawa
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Abstract
A process of production of alumina short fiber reinforced magnesium or magnesium alloy product features formation of alumina short fiber pre-form utilizing a inorganic binder which is composed of one or more oxides having thermodynamically stability equivalent to or higher than MgO. In the alternative, the composite almina fiber and binder surfaces of the alumina short fiber pre-form can be coated by a baked coating layer. Pressure casting of molten magnesium or magnesium alloy is then performed for forming the final products.
Claims11
A fiber reinforced metal product, comprising:
- a pre-form comprising alumina short fibers and an oxide binder selected from the group consisting of Li.sub.2 O, CaO;
- a mixture of MgO and Li.sub.2 O and a mixture of MgO and CaO;
- and a matrix containing a metal selected from the group consisting of magnesium and a magnesium alloy, said matrix impregnating into said pre-form.
A fiber reinforced metal product, comprising:
- a pre-form comprising alumina short fibers and an oxide binder;
- a coating layer on surfaces of said alumina short fibers and said oxide binder;
- and
- a matrix containing a metal selected from a group consisting of magnesium and a magnesium alloy, said matrix impregnating into said pre-form.
Dependencies are inferred from the claim text.