1. Sintering
The heat treatment of powder or compact at a temperature lower than the melting point of the main components in order to increase its strength through metallurgical bonding between particles.
2. Packing packing material
A material in which the compact is embedded for separation and protection during the pre-firing or sintering process.
3. Pre-burn presintering
Heating treatment of the compact at a temperature lower than the final sintering temperature.
4. Pressure sintering pressure
A sintering process that applies uniaxial pressure while sintering.
5. loose-powdersintering,gravitysintering
Powder is directly sintered without pressing.
6. Liquid-phase sintering liquid-phasesintering
A powder or compact of at least two components is sintered to form a liquid phase.
7. oversintering
The sintering temperature is too high and/or the sintering time is too long, resulting in the deterioration of the final performance of the product.
8. Undersintering
The sintering temperature is too low and/or the sintering time is too short, causing the product to fail to achieve the required performance.
9. Infiltration
A process in which the pores in unsintered or sintered products are filled in the molten state with metals or alloys with a lower melting point than the melting point of the product.
10. dewaxing, burn-off
Use heat to expel organic additives (binders or lubricants) in the compact.
11. mesh belt furnace meshbeltfurnace
Generally, the parts are continuously transported into the sintering furnace by a mesh belt protected by a muffle.
12. walking-beam furnace walking-beamfurnace
A sintering furnace that transports parts placed in the sintering tray within the furnace through a walking beam system.
13. Pusherfurnace
A sintering furnace that loads parts into a burning boat and transports them within the furnace through a propulsion system.
14. Sintered neck formation neckformation
Neck-like connections are formed between particles during sintering.
15. Blistering
Due to the violent discharge of gas, bubbling is formed on the surface of the sintered part.
16. sweating
The phenomenon of liquid phase exudation during heat treatment of compacts.
17. Sintered shell sinterskin
During sintering, a surface layer formed on the sintered part has properties different from those inside the product.
18. Relative density relativedensity
The ratio of the density of a porous body to the density of a material of the same composition in a non-porous state, expressed as a percentage.
19. Radial crushing density radialcrushingstrength
Bursting strength of sintered cylinder specimens measured by applying radial pressure.
20. Porosity
The ratio of the volume of all pores in a porous body to the total volume.
21. Diffusion pore diffusionporosity
Pores formed due to the diffusion of one component substance into another component due to the Kirkendall effect.
22. pore size distribution poresizeddistribution
The percentage of pores at all levels present in the material calculated by number or volume.
23. Apparent hardness
The hardness of sintered materials measured under specified conditions, which includes the influence of pores.
24. Solid hardness
The hardness of a certain phase or particle or a certain area of sintered material measured under specified conditions, which excludes the influence of pores.
