121 |
Diamond film and solid non-diamond particle composite compositions |
US327353 |
1994-10-20 |
US5545030A |
1996-08-13 |
John M. Pinneo |
Porous and non-porous compositions include diamond particles, non-diamond particles, or mixtures of particles consolidated with polycrystalline diamond. The composite compositions of the present invention may be formed by a process which includes the steps of preforming the particles into a preform having a desired shape, and consolidating the preform with polycrystalline diamond. The polycrystalline diamond is preferably formed using CVD techniques including application of sufficient microwave energy to maintain the preform at a temperature of between about 670.degree. and 850.degree. C. The preform may be rotated during a portion of the deposition process. |
122 |
Diamond film and solid particle composite structure and methods for
fabricating same |
US889120 |
1992-07-06 |
US5413772A |
1995-05-09 |
John M. Pinneo |
Porous and non-porous compositions include diamond particles, non-diamond particles, or mixtures of particles consolidated with polycrystalline diamond. The composite compositions of the present invention may be formed by a process which includes the steps of preforming the particles into a preform having a desired shape, and consolidating the preform with polycrystalline diamond. The polycrystalline diamond is preferably formed using CVD techniques including application of sufficient microwave energy to maintain the preform at a temperature of between about 670.degree. and 850.degree. C. The preform may be rotated during a portion of the deposition process. |
123 |
Diamond/non-diamond materials with enhanced thermal conductivity |
US95314 |
1993-07-21 |
US5316842A |
1994-05-31 |
John A. Herb; John M. Pinneo; Clayton F. Gardinier |
The present invention comprises an article formed from a plurality of non-diamond particles compatible with diamond deposition preformed into a desired shape. Each of the particles has first surface regions in contact with immediately adjacent other ones of the particles, and second surface regions spaced apart from the immediately adjacent other ones of said particles to define boundaries of inter-particle voids between the immediately adjacent ones of the particles. The voids are infiltrated with high thermal conductivity CVD diamond material continuously coating the second surface regions of the particles and comprising merged growth fronts from the second surface regions of individual immediately adjacent ones of the particles into the inter-particle voids. The high thermal conductivity CVD diamond material has an average crystallite size greater than about 15 microns, an intensity ratio of diamond- Raman-peak-to-photoluminescence background intensity greater than about 20, a maximum intensity of the diamond Raman peak in counts/sec divided by the intensity of photoluminescence at 1270 cm.sup.-1 greater than about 3, a Raman sp.sup.3 full width half maximum less than about 6 cm.sup.-1 and a diamond-to-graphite Raman ratio greater than about 25. The thermal conductivity of the CVD diamond material is in excess of 17 Wcm.sup.-1 K.sup.-1. |
124 |
Diamond materials with enhanced heat conductivity |
US789732 |
1991-11-08 |
US5284709A |
1994-02-08 |
John A. Herb; John M. Pinneo; Clayton F. Gardinier |
A diamond film having an intensity ratio of diamond-Raman-peak-to-photoluminescence background intensity greater than about 20, a maximum intensity of the diamond Raman peak in counts/sec divided by the intensity of photoluminescence at 1270 cm greater than about 3, a Raman sp full width half maximum less than about 6 cm and a diamond-to-graphite Raman ratio greater than about 25. The diamond film has a thermal conductivity of at least 17 Wcm K. |
125 |
Filter for metal hot melt |
US666080 |
1991-03-07 |
US5145806A |
1992-09-08 |
Hiroshi Shirakawa; Osamu Yamakawa |
A porous filter for metal hot melt comprises ceramic aggregate particles bound by an inorganic binder. The aggregate particles contain not less than 50 wt % of particles with a shape factor in the range of 100 to 130 and the binder has needle-shaped crystals deposited on the surface thereof. By employing this filter, debris catching ability and initial impregnation of metal hot melt are highly improved. |
126 |
High temperature filter |
US271459 |
1988-11-14 |
US4946487A |
1990-08-07 |
Anthony K. Butkus |
Filter for hot gases, comprising a mass of grains formed of a ceramic having a high melting temperature and bonded together at contact point by molten power of the same ceramic. |
127 |
Process for making hollow, ceramic spheroids |
US940795 |
1986-12-12 |
US4769189A |
1988-09-06 |
David K. Douden |
Process for making hollow, ceramic macrospheres by making a paste of a continuous phase material (e.g., sodium silicate or potassium silicate) and an insolubilizing agent (e.g., kaolin clay). Pellets are formed from the paste and expanded by subjection to heat to form hollow spheroids. The spheroids are fired at a temperature (typically 600.degree.-1000.degree. C.) and for a time sufficient to insolubilize the continuous phase material. The process may further include coating the fired spheroids with an epoxy resin (to reduce porosity) and/or bonding a plurality of the fired spheroids together to form a rigid mass of bonded spheroids. |
128 |
Fired hollow ceramic spheroids |
US787628 |
1985-10-15 |
US4657810A |
1987-04-14 |
David K. Douden |
A hollow, ceramic macrosphere or spheroid comprising a relatively smooth outer skin and cellular shell is produced in the 2-20 mm diameter range with specific gravities in the 0.2-1.2 range. The spheroids can be rendered inert to water and are stable at temperatures of 800.degree. to 1000.degree. C., depending on their composition. The porosity of the shell can be controlled through various additives and/or epoxy resin coating. The spheroids may be made from common clay and sodium silicate. |
129 |
Method of producing permeable, porous molded bodies of silicon carbide |
US579657 |
1984-02-13 |
US4532091A |
1985-07-30 |
Francisco J. Dias; Marian Kampel; Hartmut Luhleich |
A porous green-state body of carbon, with or without silicon carbide, made with a cokable binder, is crumbled to produce relatively coarse grains in the range from 0.2 to 10 mm and a fraction of the particles so produced with a much more limited range of grain size is then used to produce a second green-state body, which is then coked, siliconized if the silicon is not already provided in the making of the precursor body that was broken up, and converted into a silicon carbide body. If the siliconizing is done by immersion in a bath of molten silicon, the excess silicon is removed by vaporization or by boiling in sodium hydroxide solution. |
130 |
Method of forming ceramic bodies |
US461684 |
1983-01-27 |
US4441905A |
1984-04-10 |
Joseph W. Malmendier; Carol F. Pride; Randy L. Rhoads; Robert J. Schlaufman; Robert D. Shoup |
A method is disclosed for producing low density, ceramic bodies in the nature of hollow or solid beads which may be used as such or bonded into a unitary mass. The bodies are composed of ion-exchanged, synthetic mica crystals wherein large cations, such as K.sup.+, have been exchanged for lithium and/or sodium ions from the mica. The method involves forming a gel by dissolution of a synthetic mica in a polar liquid, releasing droplets of the gel into a fluid to form shaped bodies, effecting the indicated ion exchange, and drying the beads thus formed. |
131 |
Heat-resistant porous structural material |
US697730 |
1976-06-21 |
US4035545A |
1977-07-12 |
Albert Bonevich Ivanov; Jury Leonidovich Krasulin; Lev Kimovich Gordienko |
A material, comprising 50-75 volume percent of microspheres of high-melting point oxides, sintered directly with each. The diameter of said microspheres ranges from 10 to 200 mu. The diameter of contact of said sintered microspheres amounts to 0.2-0.5 of said microsphere diameter.The present invention enabled an enhancement of recrystallization resistance, strength and deformability of said heat-resistant porous structural material. Thus, a material made of microspheres of stabilized zirconium oxide, 30-40 mu in diameter, with a contact diameter equal to 0.3 of the microsphere diameter and a 30% porosity exhibits a compression strength of 6000 kg/cm.sup.2, a tensile strength of 500 kg/cm.sup.2 and 0.01 elongation at room temperature, which constitutes a 5-10 -fold increase, as compared with the corresponding characteristics of the known granular materials of a similar composition. |
132 |
Fire-preventive structural matrix and process of making the same |
US3510446D |
1968-05-16 |
US3510446A |
1970-05-05 |
JUNGER HANS; WEISSENFELS FRANZ |
|
133 |
Method of fabricating panels of expanded perlite |
US52897266 |
1966-02-21 |
US3418403A |
1968-12-24 |
GARNERO ANTHONY L |
|
134 |
Acoustical tile, methods, and compositions |
US3255760 |
1960-05-31 |
US3132956A |
1964-05-12 |
LEWIS JESSE H |
|
135 |
Siliceous products and method of making same |
US28338039 |
1939-07-08 |
US2209170A |
1940-07-23 |
NEVIN HOWARD S; GEORGE KALOUSTIAN |
|
136 |
Sound absorbing material and method of making the same |
US46770730 |
1930-07-14 |
US1929425A |
1933-10-10 |
HERMANN EARNEST T |
|
137 |
Sound absorbing material and process for making same |
US56192231 |
1931-09-09 |
US1914592A |
1933-06-20 |
CHARLES BIRCHY; ROBERT BIRCHY OSWALD |
|
138 |
Pervious composite materials, methods of production and uses thereof |
US14295601 |
2014-06-04 |
US09938189B2 |
2018-04-10 |
John Kuppler; Devin Patten; Deepak Ravikumar; Omkar Deo; Vahit Atakan |
The invention provides novel pervious composite materials that possess excellent physical and performance characteristics of conventional pervious concretes, and methods of production and uses thereof. These composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption, desirable carbon footprint and minimal environmental impact. |
139 |
Method for applying discriminating layer onto porous ceramic filters |
US13812515 |
2011-08-17 |
US09745227B2 |
2017-08-29 |
Jun Cai; Aleksander J. Pyzik; James J. O'Brien; Robin P. Ziebarth |
A porous discriminating layer is formed on a ceramic support having at least one porous wall by (a) establishing a flow of a gas stream containing agglomerates of particles and (b) calcining said deposited layer to form the discriminating layer. At least a portion of the particles are of a sinter-resistant material or a sinter-resistant material precursor. The particles have a size from 0.01 to 5 microns and the agglomerates have a size of from 10 to 200 microns. This method is an inexpensive and effective route to forming a discriminating layer onto the porous wall. |
140 |
Process and Apparatus for Refining Molten Glass |
US15438939 |
2017-02-22 |
US20170158541A1 |
2017-06-08 |
Terence J. Clark |
A process and an apparatus for refining molten glass. The apparatus includes a porous body having an inlet, an outlet, and a plurality of pores through which molten glass can flow between the inlet and the outlet. The plurality of pores are defined by walls having wall surfaces that are configured to interact with the molten glass as the molten glass flows between the inlet and the outlet to help refine the molten glass. |