Effect of methyl methacrylate (MMA) as a binder and heating treatment were investigated to improve green alumina compacts machinability. Properties their corresponding sintered samples prepared with without MMA compared. Investigation properties was performed on compacted at applied pressures up 150 MPa. After pressing, thermally treated 115oC. The intention enhance the polymerization temperatu...

Mesoporous Ni–alumina catalysts (Ni–alumina-pre and Ni–alumina-post) were synthesized by one-step sol–gel method using micelle complex comprising lauric acid and nickel ion as a template with metal source and using aluminum sec-butoxide as an aluminum source. The Ni–alumina catalysts showed relatively high surface areas (303 m/g for Ni–alumina-pre and 331 m/g for Ni–alumina-post) and narrow por...

Binder drainage test is widely used to set an upper limit to the design binder content of porous asphalt. However, the presence of high amount of fine particles in the drained binder may affect the accuracy of the test result. This paper presents a study to characterize the composition and particle size distribution of fine particles accumulated in the drained binder. Fine aggregates and filler...

SCGC (self-compacting geopolymer concrete) contains a new hybrid of self-compacting concrete and concrete, under the development in recent years, regarded to be an environmentally beneficial building material, as it does not use Portland cement traditional binder, its flowability eliminates need for vibrator application. Local pozzolanic materials containing silica (SiO2) alumina were utilized ...

Gas evolved from the thermal decomposition of the binder can greatly deteriorate the quality of sand castings. Binder gas models used in casting simulations require knowledge of the binder gas mass and molecular weight evolution, but available data are limited. In the present study, the mass and molecular weight of gas evolved from phenolic urethane no-bake (PUNB) bonded sand are measured as a ...

Abstract Additive Manufacturing (AM) of ceramics is a constantly emerging field interest both in research and industry. Binder jetting-based AM particular offers the opportunity to produce large ceramic parts with high wall thickness at throughput. One limitation that it requires flowable powders, which are generally coarse thus exhibit only limited sintering activity. The resulting low sintere...