Examples of using Sintering method in English and their translations into Portuguese
{-}
-
Colloquial
-
Official
-
Medicine
-
Financial
-
Ecclesiastic
-
Ecclesiastic
-
Computer
-
Official/political
Ultrafine/ nano-alloy powder sintering method directly;
Sintering method for the production of foam glass.
Ultrafine/ nano-alloy powder sintering method directly;
Therefore, when the sintering method to grasp in order to achieve the best effect sintering. .
Synthesis reaction includes SHS and in situ reaction sintering method.
Up to the sixties, the only sintering method used in practice was direct sintering. .
If tungsten oxide photocatalyst prepared from ammonium paratungstate(APT)as the raw material through solid phase and sintering method, it made up of monoclinic phase primarily;
The first one was the laser sintering method, where a co2 laser is the heating source for sintering. .
MA(Mechanical Alloying): After high-energy ball milling and other processing and to achieve the mechanical alloying between tungsten andcopper tungsten copper powder corresponding sintering method.
Tungsten copper sintering method also includes the activation temperature liquid phase sintering and sintering method.
Depending on the mixed powder preparation method used, mainly mixed oxide, restore law and mechanical alloying process; powder particle size and mechanical alloy powder is divided into general mechanical alloying powder and mechanical alloying nano powder; addition there,the liquid phase activated sintering method.
Direct Sintering Method The name suggests, a direct sintering method, after forming the desired composition of the mixed powder of tungsten and copper repression directly sintered product.
Mixed powder sintering method is based on the required ingredients mixed molybdenum-copper alloy molybdenum powder and copper powder, and then molding, sintering directly into products.
Tungsten copper material with low oxygen content, high purity,high temperature sintering method suitable for the manufacture of copper mass fraction φ(Cu) is not greater than 15% of the tungsten copper material.
Depending on the mixed powder preparation method used, mainly mixed oxide, restore law and mechanical alloying process; powder particle size and mechanical alloy powder is divided into general mechanical alloying powder and mechanical alloying nano powder;addition there, the liquid phase activated sintering method.
The objective of this study was to evaluate the impact of the sintering method, conventional and through microwave energy on the microstructural characteristics and mechanical properties of ceramics based on y- tzp zirconia.
During sintering process should wrap the molybdenum disilicide powder, cut off the air,which can prevent MoSi2 oxidative decomposition at about 500℃, so using the secondary sintering method can improve the sensitivity and resistance of the slurry sintering resistance dispersion.
Activation of activator liquid phase sintering method of adding significantly lower thermal conductivity properties, this method requires a high electrical and thermal conductivity of microelectronic materials is unfavorable.
As there is a huge distance between the tungsten and copper of the melting point,so we can adopt high temperature liquid sintering method to make tungsten copper alloy, through which densificate its density at the temperature higher than copper melting point.
In situ reaction sintering method is heating a certain chemical mixing ratio Mo and Si powders to a certain temperature to obtain thermodynamically stable compounds and to complete the process of sintering technology.
The oxygen content of the tungsten and copper material is very low, high purity,high temperature sintering method suitable for manufacture of the mass fraction of copper is not greater than 15% of the tungsten and copper material.
Liquid phase sintering method is characterized by the activation of the production process is simple, but there is a high sintering temperature, sintering time is long, a large number of volatile copper, poor sintering performance, lower sintered density and other shortcomings, can not meet the requirements.
There are many methods for MoSi2 coating material production, including slurry sintering method, entrapping method, vapor deposition method, molten-salt growth method and laser cladding technique.
Liquid phase sintering method is characterized by the activation of the production process is simple, but there is a high sintering temperature,sintering time is long, a large number of volatile copper, poor sintering performance, lower sintered density and other shortcomings, can not meet the requirements.
Tungsten, copper mutually insoluble tungsten-copper alloy powder metallurgy manufacturing process,commonly used methods can only be used ordinary sintering method and the melt infiltration process, but the system is more difficult to take the high relative density of copper tungsten alloy.
Activation of activator liquid phase sintering method of adding significantly lower thermal conductivity properties, this method requires a high electrical and thermal conductivity of microelectronic materials is unfavorable.
Overall, the production of high-temperature liquid phase sintering process is simple, but has a high sintering temperature, sintering time is long, a large number of volatile copper, poor sintering performance, lower sintered density and other shortcomings,so the high-temperature liquid phase sintering method can not prepare high density of tungsten copper composite material, if after assistedsintering process makes the process complicated and costly.
Processing Compared with conventional sintering method, sol gel method products with high uniformity and high purity, the temperature is 400°C~500°C lower than conventional sintering method, the reaction process is easy to control, can greatly reduce the side effects of the new phase formed.
Wherein nickel based tungsten carbide powder prepared by atomization has a good spraying performance, uniform layer chemical composition, no macro-segregation, and tungsten carbide in it is not easily oxidized, but WC content should not be too high; preparation of mechanical mixing method can greatly improve the WC content, however,followed by a coating of segregation increasing; sintering method results in small composition segregation is, but with the highest cost.