摘要:
A method of fabricating an article includes providing an arrangement of loose nanowires and bonding the loose nanowires together into a unitary cellular structure.
摘要:
The invention relates to a powder substantially consisting of boron nitride aggregates. Said powder has an overall chemical composition of 40 to 45 wt.% boron, 53 to 57 wt.% nitrogen, less than 400 ppm calcium, less than 5 wt.% other elements in total, and more than 90 wt.% boron nitride, limits included, and, in weight percent and on the basis of all the crystallized phases, mean circularity greater than or equal to 0.90, a median pore size less than or equal to 0.5 µm, and open porosity less than or equal to 55%.
摘要:
In a method for producing open-pore, ceramic-bonded grinding tools, a pore former mixture consisting of at least two polymers having different firing curves, the maxima of which differ by at least 20°C, is used. The polymers are preferably thermoplastics that can be decomposed exclusively into CO 2 and water during combustion. The resulting grinding tool has a multimodal pore size distribution.
摘要:
The invention relates to a composition (batch) for producing a shaped refractory ceramic product, a method for producing a shaped refractory ceramic product, and a shaped refractory ceramic product.
摘要:
The present invention concerns a coating composition for applications at temperatures higher than 1200 °C comprising : (a) between 80.0 and 99.9 wt.% of unstabilized zirconia; and (b) between 0.1 and 5.0 wt.% of a liquid phase former which is solid at ambient temperature and either melts or reacts, or decomposes to form a liquid phase above a temperature not lower than 1000°C; wherein the wt.% are expressed in terms of total solid weight of the coating composition at room temperature. It also concerns a refractory element, preferably made of a carbon bonded refractory, comprising a coated surface comprising a first coating (1) of composition as defined above.
摘要:
The invention relates to a composition (batch) for producing a shaped refractory ceramic product, a method for producing a shaped refractory ceramic product, and a shaped refractory ceramic product.