Pretreatment is one of the most important stage in olive mill
wastewater (OMWW) plants. Statistically, the cost of chemicals in
pretreatment will be not more than 0.02 €/m³OMWW for some kind of
chemical coagulants such as CaO.
In this search, has been studied set of practical experiences for compacting several
metal powders composed a metallic alloy based iron from powders with a proposed
geometric shapes (cylindrical). Several tests were done in order to reach the relat
ionship
between the final apparent density for the compact with a sintering time, and study
changing the geometric dimensions of the final compact after the completion of sintering
process during different time periods.
The tests and Measurement results had been demonstrated that sintering time affect
positively on the apparent density of the final compact which Manufactured by technique
metal powders, and thus will increase its strength, where proportionality is directly
proportional access even to a certain extent. And also its effect was an obvious shrinking
diameters samples used in the tests. And changing (increase or decrease) in height samples.
Search has shown the great importance of the follow-up studying and analyzing the
relationships which associate that variables of metal powders technique each other, and
their different effect on the final compact.
The Loos powder Sintering for metals powder is one of
the important manufacturing methods, where contact and
solidity are insured among particles, The high porosity
Filters which is sintered from metal powders is one of the
best filters .
The re
search aim especially to study the Temperature Effect
of loos powder sintering on Mechanical properties of
bronze gas filters works at 200 bar.
errite (x=0.5) was prepared by a well-known conventional ceramic double sintering method (CCDS). Force constant K was calculated for tetrahedral and octahedral sites. The elastic constant C11, bulk modulus B , longitudinal and shear wave velocities w
ere calculated. Threshold frequency for electronic transition was determined using IR spectra. In addition, the drift mobility for tetrahedral and octahedral sites, as well as magnetic dipole moment changes for bond were determined. The area beneath endothermic peaks was correlated to the weight change TG%. On the other hand, the heat capacity under constant pressure CP was correlated to sample treatment temperature. It has been noticed that the CP has a critical value at 175.
