| Evaluation of Metal Composites for Use in Weapon Components. |
JUL 1973 |
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| Authors:
Walter Precht; Carolyn M. Preece; MARTIN MARIETTA CORP BALTIMORE MD RESEARCH INST FOR ADVANCED STUDIES
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 | The concept of increasing the strength of cobalt-base alloys by dispersion hardening with a stable MC carbide was investigated. A powder metallurgy process was used to allow the cobalt alloy matrix and the specific carbide to be selected independently and combined in optimum proportions. A number of fabrication procedures have been evaluated, the most successful to date being one in which the composite is prepared by hot pressing a mixture ... |
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| Cermet Anti-Friction Material, |
30 APR 1973 |
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| Authors:
L. I. Pugina; I. M. Fedorchenko; N. E. Ponomarenko; I. A. Panfilova; G. G. Lvova; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The nickel-based anti-friction cermet material containing barium fluoride is distinguished by the fact that iron and boron are introduced in order to increase its wear-resistance under dry friction conditions. |
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| The Effect of Technological Parameters on the Properties of Structural Products Obtained by Means of the Titanium Powder Molding Method, |
18 APR 1973 |
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| Authors:
R. K. Ognev; G. G. Kolomoets; E. D. Ter-Pogosyan; L. M. Estrakh; V. M. Anokhin; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The quality of cermet products, to a considerable degree, depends on the physicomechanical properties of the powders used and the methods used to obtain them. An examination is made of the effect the properties of original powders and technological parameters of manufacturing structural products have on their mechanical indices. |
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| Lubricant for the Impregnation of Cermet Bearings, |
10 NOV 1972 |
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| Authors:
V. D. Zozulya; L. F. Kolesnichenko; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| A lubricant for the impregnation of cermet bearings is described. It is characterized by the fact that for the purpose of increasing the effectiveness of the lubricant petrolatum and glycerol are added to its composition. Its composition includes 50-80% petrolatum and 50-20% glycerol. |
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| The Properties and Application of Cermet Friction Materials, |
26 MAY 1972 |
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| Authors:
V. M. Kryachek; I. I. Panaioti; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The compositions and properties of friction cermet and metal plastics materials developed in the USSR are cited. The production technology of these materials is described and areas of application are proposed. (Author) |
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| Cermet Antifriction Material, |
30 MAR 1972 |
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| Authors:
I. M. Fedorchenko; V. D. Zozulya; I. I. Ivanova; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The iron base title material contains a solid lubricating agent. To increase the wear resistance during operation of the material in unlubricated mountings subjected to friction, barium chloride is used as the solid lubricating agent. The title material consists of 10 to 15 wt. percent barium chloride and 90 to 85 wt. percent iron. (Author) |
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| Non-Ferrous Metal Powders, |
17 MAR 1972 |
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| Authors:
D. E. Bogatin; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| ;Contents: Production of powders of non-ferrous metals and alloys; Application of powders of non-ferrous metals and alloys; Equipment for cermet production. |
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| Thermal Stability of Titanium Carbide-Steel Metal Ceramic Materials (Zharostoikost Metallokeramicheskikh Materialov Karbid Titana-Stal), |
06 AUG 1971 |
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| Authors:
S. S. Kiparisov; V. K. Narva; ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA
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| The thermal stability of materials made of titanium carbide plus steel was studied in the annealed and hardened states at 600, 800 and 1000C for 32 hours by a gravimetric method. The materials were found to oxidize less in air than the corresponding steels. The thermal stability of the material was higher in the hardened state than after annealing. (Author) |
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| Oil for Treating Cermet Articles, |
04 MAY 1971 |
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| Authors:
Yu. N. Shekhter; T. I. Ambartsumyan; L. D. Khoroshilova; A. L. Dolberg; V. D. Peskov; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The Russian patent concerns an oil for treating cermet articles, based on a mineral oil. It is distinguished by the fact that, in order to improve its effectiveness, calcium salt of nitrated oil with stearic acid, a fatty solution of calcium sulfonate, fatty acids or synthetic fatty acids given, or diphenylamine, polymethylsiloxane liquid, zinc dialkyldithiophosphate, or molebdynum disulfide are added to it. It contains in percentage 8-15 calcium salt of ... |
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| Specific Wear of Tools During Cutting of Porous Cermet Materials, |
30 OCT 1970 |
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| Authors:
V. I. Kononenko; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The roles were studied for the wear of tools during the treatment of porous materials, and requirements were set up for new tool materials. (Author) |
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| The Brittle Fracture of Alloyed Alumina. |
SEP 1970 |
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| Authors:
J. Congleton; L. M. Linnett; N. J. Petch; NEWCASTLE-UPON-TYNE UNIV (ENGLAND) DEPT OF METALLURGY
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| A hot-pressing facility was commissioned and fabrication procedures established for the manufacture of high density, fine grained pure and alloyed alumina. Mechanical testing of the products, by four point bend tests, has commenced. A suitable chemical analysis procedure for determining Cr in alumina has been developed that is accurate to within plus or minus 0.5 micrograms Cr. Additionally, a theoretical consideration of the notch strength of alumina has been developed. ... |
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| POWDERED-METAL MATERIALS AND PRODUCTS, |
28 MAY 1970 |
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| Authors:
N. F. Vyaznikov; S. S. Ermakov; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The book reviews methods of fabricating powder metallurgy materials and products made of iron powders or nonferrous metals, and describes their properties and use. Present theory and practices or compacting and sintering powder products under various production conditions are discussed. The most frequently used in machine-building materials and products with specific mechanical, technological and physicochemical properties are discussed at length, among them friction materials, antifriction materials, hard, heat-resistant alloys, sintered ... |
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| THERMAL STABILITY OF HEAT-RESISTANT CERMET MATERIALS AS HEAT SHIELDING COATINGS, |
12 DEC 1969 |
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| Authors:
M. K. Rybalchenko; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| Thermal stability is not just a property of a material, but also depends on the dimensions and the form of articles made from the given material: the thermal stability of articles with identical dimensions according to various directions is higher than with a sharp distinction of these dimensions; the thermal stability of articles of identical form increases with a decrease in the dimensions of article. Thermal stability of titanium carbide ... |
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| DEFORMATION RESISTANCE AND STABILITY OF DEFORMATION DISTORTIONS OF CERMET ALLOYS, |
05 NOV 1969 |
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| Authors:
B. V. Griogoreva; K. V. Savitskii; V. N. Zhdanova; V. A. Kulikov; V. M. Sergeenkova; ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C; ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C
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| The deformation characteristics of nickel-aluminum oxide cermets, containing up to 5% aluminum oxide were examined. The effect on hardness of aluminum oxide particle size and distribution is examined as are the effects of temperature changes. Comparison with the deformation resistance of sintered nickel is made, the conclusion being that a nickel cermet containing the alpha-modification of aluminum oxide is superior. |
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| THE EFFECT OF COLD DEFORMATION ON THE PROPERTIES AND STRUCTURE OF SHEETS OF SINTERED ALUMINUM POWER (SAP), |
06 JUN 1969 |
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| Authors:
a. a. vorobev; B. I. Matveev; V. G. Kovirzhnykh; N. D. Vinokurov; N. D. Tsabrov; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| Sintered aluminu, powder SAP material is considerably strengthened in cold deformation by cold hardening of the aluminum matrix. Material relaxation with simultaneous increase in plastic properties results from heating to a temperature above 600 degrees C. Recrystallization through process annealing is observed after exposure of 0.5-1.0 h; with an increase in exposure time, material properties barely change. High-temperature annealing (650 degrees C) sharply increases tensile characteristics at ... |
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| HYDRODYNAMIC THEORY OF THE LUBRICATION OF POROUS BEARINGS, |
03 APR 1969 |
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| Authors:
B. I. Byalyi; S. K. Dyachenko; V. A. Sirenko; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| A method is proposed for the analysis of porous metal-ceramic bearings of finite length using an approximate boundary condition to relate the velocity and pressure differential on the lubricant layer-bearing interface in the form of Darcy's law. Determination of the pressure distribution function in the lubricant layer is resolved to the joint solution of a Reynolds equation containing a term to take into account the porosity of the bearing and ... |
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| TITANIUM CARBIDE CONTENT EFFECT ON EROSION IN CERMET ROCKET NOZZLES. |
OCT 1968 |
26 pages |
| Authors:
Anthony K. Wong; James Brown; ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS
|
 | Analyses were carried out on subscale cermet nozzles fired in the AMMRC solid propellant engine at a designated maximum chamber pressure of 1100 psi for nominal burning times of 15 seconds in order to determine mechanisms of erosion and the effect of the carbide constituent on erosion. The cermet class investigated consisted of an AISI Type 316 stainless steel matrix incorporating a hard phase of titanium carbide ranging in content ... |
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| A METHOD OF OBTAINING VACUUM-TIGHT CERMET JOINTS, |
23 JAN 1967 |
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| Authors:
A. Ya Makarkin; I. I. Metelkin; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| A method is presented for obtaining vacuum-tight cermet junctions by first metallizing the ceramics and then soldering with hard solders. To avoid destroying the metallized layer, to simplify the technique, and to lower the temperature of paste infusion, soldering is carried out directly along the metallized layer formed by the infusion of molybdenum-manganese paste. (Author) |
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| OXIDATION STUDIES OF TITANIUM BORONITRIDE IN AIR. |
APR 1966 |
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| Authors:
Albert P. Levitt; Philip Wong; ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS MATERIALS ENGINEERING DIV
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| The oxidation characteristics of titanium boronitride formed by reactive hot pressing were determined over the temperature range 1010 C to 1425 C. An automatic recording balance was used to determine weight loss versus time at each test temperature for compositions containing 1.5 and 2 moles of excess boron nitride. It was found that (a) a parabolic rate law holds for oxidation of this material; (b) there was very little difference ... |
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| FABRICATION AND EVALUATION OF VACUUM DEPOSITED CERMET (CR-SIO) RESISTORS. |
31 JAN 1966 |
|
| Authors:
Clifford M. Ault; NAVAL AVIONICS FACILITY INDIANAPOLIS IND
|
| The report discusses details of materials, process and evaluation employed in determining the characteristics and capabilities of chromium-silicon monoxide cermet resistors prepared by In-Line vacuum deposition. (Author) |
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| OCCLUSION OF VARIOUS REFRACTORY MATERIALS IN CHROMIUM PLATE ON STEEL SUBSTRATES. |
16 AUG 1965 |
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| Authors:
Francis X. Hassion; Joseph Szanto; SPRINGFIELD ARMORY MASS
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| Falex test pins plated at moderate current densities from standard chromium baths containing dispersoids of diamond dust, zirconia or thoria at volume concentrations of about 1 per cent do not exhibit unusual wear characteristics. Falex test pins plated under similar conditions at high current densities show higher hardness and correspondingly improved wear resistance. The particle weights occluded in chromium plate deposited at high current densities amount to about 1 per ... |
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| ALUMINUM CERMET ALLOY, |
07 APR 1965 |
|
| Authors:
R. A. Krivenko; I. N. Fridlyander; N. S. Klyagina; M. L. Khrenkin; S. I. Spektorova; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| The object of the invention is an aluminum cermet alloy containing 10-15% silicon to which 20-30% silicon carbide is added to its composition to increase the alloys plasticity. |
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| DETERMINING THE THERMAL CONTACT RESISTANCE BETWEEN METAL-CERAMIC SURFACES, |
APR 1965 |
|
| Authors:
V. S. Miller; REDSTONE SCIENTIFIC INFORMATION CENTER REDSTONE ARSENAL ALA
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Reports by Keyword(s)
_*CERMETS
