Segregation measurement of powder injection molding feedstock using thermogravimetric analysis, pycnometer density and differential scanning calorimetry techniques

2015 ◽  
Vol 26 (3) ◽  
pp. 997-1004 ◽  
Author(s):  
Vincent Demers ◽  
Sylvain Turenne ◽  
Orlando Scalzo
Keyword(s):  
Differential Scanning Calorimetry ◽  
Thermogravimetric Analysis ◽  
Injection Molding ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Scanning Calorimetry ◽  
Segregation Measurement

Thermal Stability of N-Heterocycle-Stabilized Iodanes – A Systematic Investigation

2019 ◽  
Author(s):  
Andreas Boelke ◽  
Yulia A. Vlasenko ◽  
Mekhman S. Yusubov ◽  
Boris Nachtsheim ◽  
Pavel Postnikov
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Thermogravimetric Analysis ◽  
Systematic Investigation ◽  
Scanning Calorimetry ◽  
Thermal Stability Of

<p>The thermal stability of pseudocyclic and cyclic <i>N</i>-heterocycle-stabilized (hydroxy)aryl- and mesityl(aryl)-l<sup>3</sup>-iodanes (NHIs) through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) is investigated. NHIs bearing <i>N</i>-heterocycles with a high N/C-ratio such as triazoles show among the lowest descomposition temperatures and the highest decomposition energies. A comparison of NHIs with known (pseudo)cyclic benziodoxolones is made and we further correlated their thermal stability with reactivity in a model oxygenation. </p>

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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