Kompositmateriale og fremgangsmåde til produktion heraf

摘要

A composite material (I) comprises: (A) a porous inorganic nonmetallic matrix having a flexural strength of at least 40 MPa (ISO 6872); and (B) a second material comprising an organic material that at least partially fill the pores of the matrix whereby the composite (I) has a modulus of elasticity, E, of at least 25 GPa (ISO 10477). Independent claims are included for: (i) a process for the production of the composite (I) by preparation of the inorganic starting material, preferably in powder form; sintering of the material such that the sintering process is ended prior to formation of closed pores in the sinter product and the phase of necking and/or glass flux is reached; treatment of the matrix with a coupling agent; infiltration of the resulting porous and surface treated matrix with the organic material; and solidification of the organic material; (ii) the porous inorganic nonmetallic matrix (A); (iii) a process for the production of the matrix (A) by mixing an inorganic nonmetallic material with a removable binder to form a moldable material; removal of the binder to yield a porous inorganic nonmetallic structure; sintering of the structure ot form the porous matrix (A); (iv) a mixture of powdered inorganic nonmetallic substances having a particle size (d50) of 0.2-25 mu m and containing 2-50 wt.% removable binder; (v) a molded article of porous sintered natural and/or synthetic feldspar or feldspar-like material having a porosity of 5-85 (15-35) vol.%; (vi) a multilayer molded article having layers with different properties in the layers prepared by construction of the article by means of hardening individual layers and application of new layers with different starting materials having different physical-technical properties.