| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Pressing of whiteware ceramic articles | US390323 | 1989-08-07 | US5145624A | 1992-09-08 | Alan P. Croft |
| A process for the preparation of whiteware ceramic articles employs an alkylenediamine, such as ethylenediamine, as an additive to increase the green strength of articles prepared by pressing. Optionally, the additive includes a latex such as a styrene butadiene latex in an amount effective to further improve the green strength of the articles prepared. | ||||||
| 42 | Low-temperature fast-fired lightweight ceramic heat insulation plate and preparation method thereof | US14783753 | 2013-04-28 | US09637412B2 | 2017-05-02 | Qinggang Wang; Yijun Liu; Limin Pan; Bingyu Pan; Yong Zhao |
| A low-temperature fast-fired lightweight ceramic heat insulation plate and a preparation method thereof. The preparation method comprises: performing ball milling and powder spraying on a raw material containing foamable ceramic waste slag to prepare foamable powder, the foamable ceramic waste slag accounting for 80-100 wt % of the weight of the raw material; uniformly mixing 100 weight portions of the foamable powder with 3-15 weight portions of granular powder of a low-melting-point organic matter to obtain mixed powder materials; pressing the mixed powder materials under 10-20 MPa to prepare a ceramic green body; and firing the ceramic green body at a temperature of 1100-1170° C. to prepare the lightweight energy-saving ceramic heat insulation plate. | ||||||
| 43 | Low temperature process for making radiopac materials utilizing industrial/agricultural waste as raw material | US11026115 | 2005-01-03 | US20060066013A1 | 2006-03-30 | Sudhir Amritphale; Navin Chandra; Narayanrao Ramakrishnan |
| A novel process is for making ceramic based radiopac materials useful for X-ray radiation attenuation. The process is lead as well as rare earth free and thus obviates (i) the use of conventionally used lead metal and its compounds—which are toxic in nature and are heavy weight as the density of lead is 11.34 gm/cm-2. Further the low melting points of lead (325° C.) prohibits its use in high temperature shielding structures and (ii) the use of Rare earth is restricted because they are very costly and scarcely available. The novel process of the present invention utilizes different varieties of waste as raw materials such as fly ash (from thermal power plants), Red mud (from aluminum production), Rice husk silica (an agro waste) and pyrophyllite (an underutilized clay mineral). These waste materials contain various necessary constituents required for making radiopac materials namely silicon, titanium, iron and aluminum. The presence of different mineralizers in the raw materials used and use of phosphatic binders significantly helps in obtaining the radiopac materials, at relatively low temperature of 920° C. itself and thus leads to saving of considerable heat energy. Further as the waste are generated in powder form, the use of these waste also helps in saving on the account of grinding energy. The radiopac materials obtained by the novel process of present invention are capable of withstanding ambient to high temperature and thus finds wide applications in making aprons, gloves and ceramic tiles, bricks for attenuation of X-ray radiations. The radiopac materials are useful as materials for construction of partition wall of X-ray room in hospitals, research institutes and industries. Apart from this radiopac materials an also be used and in making high temperature X-ray attenuation structures. | ||||||
| 44 | Polycrystalline translucent alumina-based ceramic material, uses, and methods | US10034642 | 2001-12-28 | US06878456B2 | 2005-04-12 | Darren T. Castro; Richard P. Rusin |
| A polycrystalline translucent aluminum oxide ceramic material having an average grain size of no greater than 1.0 micron and a Contrast Ratio value of less than about 0.7. The material can be in the form of a dental mill blank, dental prosthesis or other dental article or non-dental article. | ||||||
| 45 | Method and apparatus for the preparation of transparent alumina ceramics by microwave sintering | US10343752 | 2003-02-03 | US06812441B2 | 2004-11-02 | Jiping Cheng; Dinesh Agrawal; Rustum Roy |
| An apparatus (10) for the development of transparent alumina ceramics using microwave energy at the frequency between 0.915 and 2.45 GHz inclusive in hydrogen atmosphere at ambient pressure comprises an enclosed, insulated chamber (14) to retain a workpiece (12) for the application of microwave energy. The chamber comprises a TE103 single mode or a multimode microwave cavity into which is mounted a quartz tube (18). An insulation material (20), transparent to microwave energy, is positioned within the quartz tube. A port (28) for the introduction of hydrogen penetrates the cavity so that the microwave sintering of the workpiece is performed in an ultra-pure hydrogen atmosphere. The workpiece is preferably mounted on a refractory ceramic such as alumina tube for the microwave sintering process. A method, preferably using the apparatus, develops transparent alumina ceramics and single crystal sapphire. | ||||||
| 46 | Aluminum nitride sintered body, method for producing aluminum nitride sintered body, ceramic substrate and method for producing ceramic substrate | US10181724 | 2002-09-27 | US20040097359A1 | 2004-05-20 | Yasuji Hiramatsu; Yasutaka Ito |
| The purpose of the present invention is to provide a method for manufacturing a ceramic substrate hardly causing cracks and damages and the like attributed to pushing pressure and the like since the strength of the above-mentioned ceramic substrate is higher than that of a conventional one even in the case of manufacturing a large size ceramic substrate capable of placing a semiconductor wafer with a large diameter and the like. The present invention is to provide a method for manufacturing a ceramic substrate having a conductor formed on the surface thereof or internally thereof, including the steps of: firing a formed body containing a ceramic powder to produce a primary sintered body; and performing an annealing process to the primary sintered body at a temperature of 1400null C. to 1800null C., after the preceding step. | ||||||
| 47 | ESD dissipative ceramics | US10689192 | 2003-10-20 | US20040079927A1 | 2004-04-29 | Oh-Hun Kwon; Matthew A. Simpson; Roger J. Lin |
| This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (103-1011 Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems. | ||||||
| 48 | ESD dissipative ceramics | US09988894 | 2001-11-19 | US06669871B2 | 2003-12-30 | Oh-Hun Kwon; Matthew A. Simpson; Roger J. Lin |
| This invention relates to a dense ceramics having ESD dissipative characteristics, tunable volume and surface resistivities in semi-insulative range (103-1011 Ohm-cm), substantially pore free, high flexural strength, light colors, for desired ESD dissipation characteristics, structural reliability, high vision recognition, low wear and particulate contamination to be used as ESD dissipating tools, fixtures, load bearing elements, work surfaces, containers in manufacturing and assembling electrostatically sensitive microelectronic, electromagnetic, electro-optic components, devices and systems. | ||||||
| 49 | Methods to solidify cremation ash | US10139648 | 2002-05-07 | US06615463B1 | 2003-09-09 | Hamid Hojaji |
| Residual bones, and ashes from the cremation process of deceased humans and animals are turned into solid objects containing glass, ceramics, clay based materials, or composites such as organic polymer matrix, metal matrix, or inorganic cementaceous matrix, or combination of thereof. In another embodiment, ash is mixed with at least a liquid phase such as paint or coating, which upon dying or heating the mixture becomes solid. The final solid product can be made into any shapes or forms that the matrix can be made into without the addition of the ash. The final form of the product thereof can range from abstractive non-functional to geometrical shapes or functional forms such as containers, vases, or in the form of jewelry stones. Or painting, drawing, coating, and glazing. The objects can be made to contain almost all ash, such as in the case of ceramics or partially loaded with ash as is the case for glass and composites. In one other embodiment, the cremation residue either in a solid form or powdery form can be encapsulated in glass, ceramics, and various composites to form a heterogeneous product. The finished products can be marked with identification formats such as bar codes which make them possible to be traced electronically in a data base environment. | ||||||
| 50 | ORTHODONTIC APPLIANCES INCLUDING POLYCRYSTALLINE ALUMINA-BASED CERAMIC MATERIAL, KITS, AND METHODS | US10034997 | 2001-12-28 | US20030165790A1 | 2003-09-04 | Darren T. Castro; Richard P. Rusin; William E. Wyllie II |
| An orthodontic appliance that includes a polycrystalline translucent aluminum oxide ceramic material having an average grain size of no greater than 1.0 micron and a Contrast Ratio value of less than about 0.7. | ||||||
| 51 | Zirconia sintered body, abrasion-resistant member, bearing ball, and member for optical connector | US10347185 | 2003-01-21 | US20030139279A1 | 2003-07-24 | Tomonori Niwa |
| A zirconia sintered body comprising a zirconia and a titanium oxide and a process for producing a zirconia sintered body which comprises sintering a raw material mixture comprising a zirconia and a titanium oxide in an oxygen-free atmosphere comprising one of hydrogen, nitrogen and water. | ||||||
| 52 | Roofing tile and snow-melting, tiled roof using the same | US10125797 | 2002-04-18 | US20020152697A1 | 2002-10-24 | Kazuo Hokkirigawa; Rikuro Obara |
| A tile comprises a fire resistant ceramic, which is obtained by mixing and kneading defatted bran obtained from rice bran and a thermosetting resin, primarily baking the resulting mixture in an inert gas at 700null C. to 1000null C., crushing the resulting product into carbonized powder, mixing and kneading the carbonized powder with a ceramic powder, a solvent and, optionally, a binder to provide a plasticized mixture (ceramic-solvent mixture), pressure forming the mixture at a compression pressure of 10 MPa to 100 MPa, and heat treating the resulting compact again in an atmosphere of an inert gas at 500 to 1400null C. | ||||||
| 53 | Weather-resistant exterior building material | US10125798 | 2002-04-18 | US20020152694A1 | 2002-10-24 | Kazuo Hokkirigawa; Rikuro Obara |
| The invention provides a weather-resistant exterior building material which has been unavailable in the past with respect to characteristics of keeping harmful insects such as white ants, and so forth away therefrom, light weight, a long service life, insusceptibility to variation in temperature, hygroscopicity, and easiness in fabrication, and an exterior article made up of the same. The weather-resistant exterior building material according to the invention makes use of a compact formed of RB ceramic, CRB ceramic, or fire-resistant CRB ceramic. | ||||||
| 54 | Synthetic garnite tiles and a method of producing the same from beach sand garnet | US904626 | 1997-08-01 | US06063720A | 2000-05-16 | Amitabha Kumar; Goutam Banerjee; Dinesh Kumar Das; Nar Singh; Santosh Kumar Haldar |
| This invention relates to synthetic garnite tiles made essentially from garnite sand and a process for the production of synthetic garnite tiles essentially from garnet sand which is a by-product of beach sand from rare earths extraction, said process comprising mixing beach sand garnet, feldspar and clay thoroughly; pressing the mixture using a press at a pressure in the range of 40-80 MPa to form tiles of desired shapes and sizes; drying the tiles so formed at a temperature of 100-120.degree. C.; firing the dried tiles at a temperature in the range of 1050-1250.degree. C. with a soaking for a period ranging from 1.5 to 2.5 hours, and polishing the resultant tiles. | ||||||
| 55 | Process for manufacturing brick mouldings | US272517 | 1994-07-11 | US5665290A | 1997-09-09 | Thomas Koslowski; Thomas Fandel |
| The invention relates to a process for manufacturing brickworks mouldings by mixing a compound containing a granular clay-containing material with a lean material and, if required, other additives from which moulding compound green products are moulded, dried and burnt. This process permits a recycling of residual materials by using as clay-containing material a residual material consisting predominantly of clay minerals, especially a dry fraction, predominantly composed of annealed clay minerals, of an ash, preferably brown coal ash, and by producing the moulding compound by mixing the fraction with the lean material and other additives as well as water, where water is used in such a quantity as to produce an earth-moist moulding compound which is then pressed in portions on a press to form individual, inherently stable green products. | ||||||
| 56 | Plate product of ceramic material and process for the manufacturing thereof | US841254 | 1992-02-24 | US5264168A | 1993-11-23 | Marcello Toncelli |
| Plates of ceramic material are prepared starting from stone material, particularly feldspar, quartz, porphyry, granites, silica, syenites, nephelines, ceramic materials, clays, kaolins, bentonites, in granular and/or powder form, mixed with a small amount of ceramic binder to form a mixture. This mixture is distributed onto a plane delimited from a containing frame and then subjected to the simultaneous action of a vacuum and of a vibratory motion combined with a pressing action. After the moulding step, a drying step and then a firing step are carried out, the latter taking place at the standard temperatures for the manufacturing of ceramic products.The resulting plate has high mechanical properties, is highly resistant to atmospherical and chemical agents, and has a very valuable aesthetic appearance. | ||||||
| 57 | Refractory material produced from red mud | US636749 | 1991-01-02 | US5106797A | 1992-04-21 | Claude Allaire |
| A process for producing a refractory material and to the material so-produced. The process comprises calcining red mud obtained as a by-product of the Bayer process of producing alumina, grinding the calcined product to form particles of -4 Tyler mesh, mixing the ground product with a binder (e.g. colloidal silica, colloidal alumina, sodium silicate or sodium aluminate) and sufficient water to produce a formable mixture. The mixture is then formed into a desired shape and fired, preferably after curing and drying. The resulting fired products have good resistance to high temperatures and to corrosive chemicals such as cryolite. Consequently, the products can be used as refractory linings for aluminium production cells, and in similar applications. | ||||||
| 58 | Method of producing a spinel type ceramic sintered body | US880815 | 1986-07-01 | US4751208A | 1988-06-14 | Rokuro Aoki; Nobuo Takagi |
| A spinel type ceramic sintered body is provided starting from a chromiferous slag which is a waste discharged from sodium chromate production, said sintered body being reproducable by selecting the mole ratios of R.sub.2 O/MgO to 0.9-2.0 and SiO.sub.2 /MgO to 1-6 wherein R represents collectively Al, Fe and Cr, the sintered body having high thermal conductivity falling within the range of 1.3-2.5 kcal/mh.degree. C., specific electric resistance falling within the range of 10.sup.2 -10.sup.7 cm high mechanical strengths and unique coloration and which can be used as a functional tile. | ||||||
| 59 | Brick and method of making same | US693283 | 1976-06-07 | US4120735A | 1978-10-17 | Robert H. Smith |
| A brick or similarly fired construction unit and method of making it comprising mixing at least about 50% inorganic, non-ferrous residue from municipal incinerators, by weight, with coal fly ash and a binder, such as sodium silicate, and firing the mixture at a temperature of about 1700 to about 1900 to 2000.degree. F. for about 1/2 hour. A preferred "optimum" composition for lower firing temperatures and less costly binders comprises about 50 to 60% incinerator residue, 0.5 to 10% of sodium silicate or other binder and the remainder fly ash fired at 1700.degree.-1750.degree. F., which produces compressive strength and water absorption properties superior to fly ash brick and equal to better than conventional clay brick, even though the firing temperature is about 300.degree. less. | ||||||
| 60 | Compositions and methods for converting hazardous waste glass into non-hazardous products | US14078723 | 2013-11-13 | US09827457B2 | 2017-11-28 | Hao Gan; Malabika Chaudhuri; Biprodas Dutta; Ian L. Pegg |
| The present invention provides compositions and methods for converting hazardous waste glass into safe and usable material. In particular, the present invention provides compositions and methods for producing ceramic products from toxic-metal-containing waste glass, thereby safely encapsulating the metals and other hazardous components within the ceramic products. | ||||||
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