Influence of sintering temperature on the shrinkage and geometrical characteristics of steel parts produced by powder metallurgy

Shrinkage characteristics studies on conventional sintered zirconia toughened alumina using computed tomography imaging technique

“…The shrinkage studies were performed with a CCD camera and video frame grabber on WC-6% Co cylindrical specimen during sintering by Gasik and Zhang using the data obtained from optical dilatometer [19]. Cristofolini et al used coordinate measuring machine (CMM) to evaluate the dimensional deviation and geometrical variation of steel part formed by powder metallurgy route [20]. The shrinkage analyses to examine the 3 dimensional shrinkage behavior of alumina during the sintering were made by digitizing them using a gray-code fringe projection and detection by a CCD camera [21].…”

The Sintering Temperature Effect on the Shrinkage Behavior of Cobalt Chromium Alloy

“…Other advantage of Powder Metallurgy (P/M) is the ability to fabricate of the components with complex geometries (Robert-Perron et al, 2005). In fact, there were also several studies on the tensile, impact and fatigue resistance of the P/M materials which has shown good results (Abdoos et al, 2009;Sudhakar, 2000;Cristofolini et al, 2010). Simchi et al (2006) has determined that by binding the products with different properties in various locations, or composite components using P/M process will reduce the cost and manufacturing step plus eliminate the welding process.…”

“…The higher sintering temperature will effecting to more shrinkage and hence leads to the increasing of density. This is because sintering reduces the total pore surface and pore volume of the green part (Cristofolini et al, 2010). However, Dourandish has found that the sintering temperature can be manipulated in order to obtain certain porosity grade of the composite layers (Dourandish et al, 2008).…”

Kesan Suhu Pensinteran terhadap Sifat Mekanik dan Mikrostruktur Alumina- Zirkonia yang Difabrikasi dengan Kaedah Pengacuan Suntikan Seramik

“…Kawasan liang yang semakin terhapus sehingga membentuk sempadan ira menyebabkan jasad seramik mula mengecut. Oleh yang demikian, penguatan sempadan ira yang terbentuk seterusnya meningkatkan sifat mekanik bahan dengan ketumpatan jasad yang semakin tinggi (Cristofolini et al 2010). Kajian oleh Chuankrerkkul et al (2016) menunjukkan peningkatan suhu pensinteran adalah sejajar dengan peningkatan nilai ketumpatan.…”