Powder injection molding of PNN-PMN-PZN doped low temperature sintering PZT ceramics

2017 ◽  
Vol 28 ◽  
pp. 235-242 ◽  
Author(s):  
Jun Sae Han ◽  
Chang Woo Gal ◽  
Jae Man Park ◽  
Seong Jin Park
Keyword(s):  
Low Temperature ◽  
Injection Molding ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Low Temperature Sintering ◽  
Pzt Ceramics

Development of Powder Injection Molding Process for a Piezoelectric PAN-PZT Ceramics

2016 ◽  
Vol 23 (2) ◽  
pp. 112-119 ◽  
Author(s):  
Jun Sae Han ◽  
◽  
Dong Yong Park ◽  
Dongguo Lin ◽  
Kwang Hyun Chung ◽  
...  
Keyword(s):  
Injection Molding ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Injection Molding Process ◽  
Molding Process ◽  
Pzt Ceramics

scholarly journals Structure and Properties of Co-Cr-Mo Alloy Manufactured by Powder Injection Molding Method

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2010
Author(s):  
Grzegorz Matula ◽  
Aleksandra Szatkowska ◽  
Krzysztof Matus ◽  
Błażej Tomiczek ◽  
Mirosława Pawlyta
Keyword(s):  
Low Temperature ◽  
Injection Molding ◽  
Bending Strength ◽  
Ceramic Powder ◽  
Ethylene Vinyl Acetate ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Cobalt Chromium ◽  
Molding Method ◽  
Cobalt Chromium Molybdenum

Cobalt–chromium–molybdenum alloys samples were obtained by the powder injection molding method (PIM). PIM is dedicated to the mass production of components and can manufacture several grades of dental screws, bolts, stabilizers, or implants. As a skeleton component, ethylene–vinyl acetate (EVA copolymer) with a low temperature of processing and softening point was used. The choice of a low-temperature binder made it necessary to use a coarse ceramic powder as a mechanical support of the green sample during sintering. The injection-molded materials were thermally degraded in N2 or Ar-5%H2 and further sintered in N2-5%H2 or Ar-5%H2 at 1300 or 1350 °C for 30 min. The structure of the obtained samples was characterized by X-ray diffraction and electron microscopy. Mechanical properties, including hardness and three-point bending tests, confirmed that a nitrogen-rich atmosphere significantly increases the bending strength compared to the material manufactured in Ar-5%H2. This is due to the precipitation of numerous fine nitrides and intermetallic phases that strengthen the ductile γ-phase matrix.

Low temperature powder injection molding of iron micro-nano powder mixture

2012 ◽  
Vol 228 ◽  
pp. 199-205 ◽  
Author(s):  
Woo-Kyung You ◽  
Joon-Phil Choi ◽  
Su-Min Yoon ◽  
Jai-Sung Lee
Keyword(s):  
Low Temperature ◽  
Injection Molding ◽  
Powder Mixture ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Nano Powder

Ti-6Al-4V alloy bimodal powders for powder injection molding

2020 ◽  
Author(s):  
Elena Glazkova ◽  
Nikolay Rodkevich ◽  
Nikita Toropkov ◽  
Aleksandr Pervikov ◽  
Marat Lerner
Keyword(s):  
Injection Molding ◽  
Powder Injection Molding ◽  
Powder Injection

Investigation of final-stage sintering of various microsize structures prepared by micro powder injection molding

2010 ◽  
Vol 103 (4) ◽  
pp. 1145-1151 ◽  
Author(s):  
L. Liu ◽  
N. H. Loh ◽  
B. Y. Tay ◽  
S. B. Tor ◽  
H. Q. Yin ◽  
...  
Keyword(s):  
Injection Molding ◽  
Final Stage ◽  
Powder Injection Molding ◽  
Powder Injection

scholarly journals Molding Properties of Inconel 718 Feedstocks Used in Low-Pressure Powder Injection Molding

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Fouad Fareh ◽  
Vincent Demers ◽  
Nicole R. Demarquette ◽  
Sylvain Turenne ◽  
Orlando Scalzo
Keyword(s):  
Shear Rate ◽  
Injection Molding ◽  
Inconel 718 ◽  
Rate Sensitivity ◽  
Low Pressure ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Sensitivity Index ◽  
High Shear Rates ◽  
The Impact

The impact of binders and temperature on the rheological properties of feedstocks used in low-pressure powder injection molding was investigated. Experiments were conducted on different feedstock formulations obtained by mixing Inconel 718 powder with wax-based binder systems. The shear rate sensitivity index and the activation energy were used to study the degree of dependence of shear rate and temperature on the viscosity of the feedstocks. The injection performance of feedstocks was then evaluated using an analytical moldability model. The results indicated that the viscosity profiles of feedstocks depend significantly on the binder constituents, and the secondary binder constituents play an important role in the rheological behavior (pseudoplastic or near-Newtonian) exhibited by the feedstock formulations. Viscosity values as low as 0.06 to 2.9 Pa·s were measured at high shear rates and high temperatures. The results indicate that a feedstock containing a surfactant agent exhibits the best moldability characteristics.

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