Abstract: Disclosed are cermets for magnetic sensors. The disclosed cermets for magnetic sensors may include at least six carbides and at least one refractory metal. The carbides are selected from TiC, VC, ZrC, HfC, WC, NbC and TaC, the refractory metal is tungsten, the cermets for magnetic sensors operate in 100˜3000 K, the magnetic precision is between 99.6˜99.9%, such that the cermets for magnetic sensors are suitable for the magnetic sensors to operate at high temperatures.

Abstract: A toughened ceramic material includes at least one boride and a refractory metal, or at least two borides, one carbide at least, and a refractory metal. The toughened ceramic material is by means of heating and smelting the above materials. During the process of preparing the toughened ceramic material by heating and smelting, substantially all the refractory metal reacts with the boride and/or the carbide to form a toughened ceramic material with a high toughness and substantially without metallic cemented phase.

Abstract: Composites having the composition of at least one principal strengthening phase compound and one cemented phase of principal refractory metal are disclosed. The components of the strengthening phase compound can be a boride or a mixture of a boride and one or more than one carbide. In addition, the composites are obtained by smelting the principal strengthening phase compound and the cemented phase principal refractory metal in a non-equal molar ratio.

Abstract: A composite composed of two principal strengthening compounds and one principal cementing refractory metal that is prepared by combining a suitable binary to senary borides and/or carbides with a unitary to binary principal refractory metal is disclosed. As compared with the conventional sintered cemented carbides, the composite of the disclosure not only possess high hardness and high toughness but also has various ratios of principal components since it is not prepared with equal mole during the process.

Abstract: Disclosed are cermets for magnetic sensors. The disclosed cermets for magnetic sensors may include at least six carbides and at least one refractory metal. The carbides are selected from TiC, VC, ZrC, HfC, WC, NbC and TaC, the refractory metal is tungsten, the cermets for magnetic sensors operate in 100˜3000 K, the magnetic precision is between 99.6˜99.9%, such that the cermets for magnetic sensors are suitable for the magnetic sensors to operate at high temperatures.

Abstract: A toughened ceramic material includes at least one boride and a refractory metal, or at least two borides, one carbide at least, and a refractory metal. The toughened ceramic material is by means of heating and smelting the above materials. During the process of preparing the toughened ceramic material by heating and smelting, substantially all the refractory metal reacts with the boride and/or the carbide to form a toughened ceramic material with a high toughness and substantially without metallic cemented phase.

Abstract: Eutectic cermet materials include at least two carbides and a refractory metal, wherein the carbide is selected from the group of TiC, VC, ZrC, HfC, WC, NbC and TaC, and the refractory metal is tungsten. The disclosed eutectic cermet material prepared is by smelting the carbide and the refractory metal together at a temperature lower than melting temperatures of the carbide and the refractory material. The melting temperature lowered by forming a eutectic composition is to prepare the eutectic cermet materials having a fine lamellar structure. The prepared eutectic cermet materials improve hardness and toughness at use.

Abstract: A Ge-containing stainless steel is disclosed. The disclosed Ge-containing stainless steel is principally composed of Fe and Cr. Pitting corrosion is significantly reduced when a certain amount of Ge is added. When more Ge is added, the pitting corrosion is reduced to a minimum level.

Abstract: A structure of composite crucibles and a high temperature adiabatic method in an arc heating process are disclosed. The structure may include a conventional water-cooled copper platform on which one or more graphite platform(s) are disposed and the topmost graphite platform is configured for disposing one or more metallic specimen(s). When arc smelts the metallic specimen(s) in the furnace in vacuum, and the heat of the metallic specimen(s) is transferred to the graphite platform, the graphite platform can reduce heat loss and improve heat preservation so as to cause the metallic specimen(s) to remain stable for the process of heating and melting to complete. The heat of the graphite platform is further transferred to the copper platform for lowering the temperature of the graphite platform.

Abstract: A method for producing aluminum nitride is to disclose, which includes injecting a nitrogen-containing gas and a pure aluminum material into a high-temperature jet mill. In the high-temperature jet mill, the injected pure aluminum material reacts with the nitrogen and forms aluminum nitride on the surface. The aluminum nitride is continuously to pulverize in the high-temperature jet mill to form fine aluminum nitride powder. According to the present disclosure, unnecessary cost and complicated processes in elevated-temperature agglomeration is to avoid.

Abstract: A molten iron-assisted method for producing aluminum nitride (AlN) and a device thereof are disclosed. Pure aluminum is introduced into a vacuumed molten iron bath continuously for producing a molten iron bath having the aluminum, then nitrogen is introduced into the molten iron bath having the aluminum. Production of AIN is controlled by having the concentration of aluminum in the molten iron bath having the aluminum controlled. At the time AIN is formed continuously in the molten iron bath having the aluminum, AIN floats to the surface of the molten iron bath having the aluminum. Ar and N2 may be blown and dust is removed by static electrons thereafter, such that pure aluminum nitride powder can be collected. Finally, the used gas is recycled and reused.

Abstract: A refractory metal matrix-ceramic compound multi-component composite material with the super-high melting point is disclosed. At least one ceramic compound A and at least one refractory bonding metal B are fused together by the smelting process to make the multi-component composite material. The fused ingredients of the multi-component composite material are mAnB, and 2?(m+n)?13. The positive integer m is the number of the kinds of the ceramic components A, and the positive integer n is the number of the kinds of the refractory bonding metals B. The absolute value of the combining enthalpy of the ceramic compound A is larger than the absolute value of the combining enthalpy between the ceramic compound A and the refractory bonding metal B. The material has the properties including over 3000° C. melting point, high stability, hardness, ductility, and fusibility in high or low temperature, fast production, and low cost.

Abstract: Composites having the composition of at least one principal strengthening phase compound and one cemented phase of principal refractory metal are disclosed. The components of the strengthening phase compound can be a boride or a mixture of a boride and one or more than one carbide. In addition, the composites are obtained by smelting the principal strengthening phase compound and the cemented phase principal refractory metal in a non-equal molar ratio.

Abstract: A method for producing aluminum nitride is to disclose, which includes injecting a nitrogen-containing gas and a pure aluminum material into a high-temperature jet mill. In the high-temperature jet mill, the injected pure aluminum material reacts with the nitrogen and forms aluminum nitride on the surface. The aluminum nitride is continuously to pulverize in the high-temperature jet mill to form fine aluminum nitride powder. According to the present disclosure, unnecessary cost and complicated processes in elevated-temperature agglomeration is to avoid.

Abstract: A Ge-containing stainless steel is disclosed. The disclosed Ge-containing stainless steel is principally composed of Fe and Cr. Pitting corrosion is significantly reduced when a certain amount of Ge is added. When more Ge is added, the pitting corrosion is reduced to a minimum level.

Abstract: A composite composed of one or a plurality of principal strengthening compounds and at least one principal cemented refractory metal that is prepared by combining a suitable binary to senary borides and/or carbides with a unitary to binary principal refractory metal is disclosed. As compared with the conventional sintered cemented carbides, the composite of the disclosure not only possess high hardness and high toughness but also has various ratios of principal components since it is not prepared with equal mole during the process.

Abstract: A structure of composite crucibles and a high temperature adiabatic method in an arc heating process are disclosed. The structure may include a conventional water-cooled copper platform on which one or more graphite platform(s) are disposed and the topmost graphite platform is configured for disposing one or more metallic specimen(s). When arc smelts the metallic specimen(s) in the furnace in vacuum, and the heat of the metallic specimen(s) is transferred to the graphite platform, the graphite platform can reduce heat loss and improve heat preservation so as to cause the metallic specimen(s) to remain stable for the process of heating and melting to complete. The heat of the graphite platform is further transferred to the copper platform for lowering the temperature of the graphite platform.

Abstract: A molten iron-assisted method for producing aluminum nitride (AlN) and a device thereof are disclosed. Pure aluminum is introduced into a vacuumed molten iron bath continuously for producing a molten iron bath having the aluminum, then nitrogen is introduced into the molten iron bath having the aluminum. Production of AIN is controlled by having the concentration of aluminum in the molten iron bath having the aluminum controlled. At the time AIN is formed continuously in the molten iron bath having the aluminum, AIN floats to the surface of the molten iron bath having the aluminum. Ar and N2 may be blown and dust is removed by static electrons thereafter, such that pure aluminum nitride powder can be collected. Finally, the used gas is recycled and reused.

Abstract: The present disclosure relates to a pulse diagnostic examination system and an instrument operation method thereof. The system may include a pulse touching and sensing unit, a pulse frequency sensing unit, a pressure feedback sensing unit, a blood flow rate sensing unit, a carpi radial artery sensing and detecting unit, a data base unit and a data processing unit. The pulse touching and sensing unit is placed on nine touching and sensing points corresponding to cun, guan and chi of the arm of the human. The pulse touching and sensing unit may press and move along an artery vertically and horizontally corresponding to the nine points for detecting a pulse frequency, a downward-pressure feedback strength, a blood flow and a thickness of the artery. The result generated in the process may be compared with a pulse classification table for analyzing a corresponding pulse by the position, the strength, the frequency and the classification of the pulse for diagnose and treatment.

Abstract: Germanium-bearing ferritic stainless steels are provided. A raw stainless steel-based material may have trace amount of germanium added. The raw material may be with iron and chromium as the primary components and such raw material when having germanium added could be used for the preparation of the germanium-bearing ferritic stainless steels. The trace addition of germanium may help the forming of passivation film, improve the stability of the passivation film and repairing capability of the same, enhance anti-corrosion capability of alloy, and turn pitting corrosion into general corrosion.