Alon-based materials prepared by SHS technique

AlON: A brief history of its emergence and evolution

“…[39][40][41] AlON powders can be synthesized by simple reaction of Al 2 O 3 and AlN, carbothermal reduction of Al 2 O 3 , 42 plasma arc synthesis 24,43 and self-propagating high-temperature synthesis (SHS). 44 In a more comprehensive study, 45,46 the properties of materials in the Al 2 O 3 -AlN system by both reactive hot-pressing and reaction-sintering was studied, referring to these materials as ALUMINALON. Significant variations in hardness, flexure strength and fracture toughness were observed.…”

Elastic constants of oxynitride aluminum spinel phases

“…The constant anion model assumes a constant number of 32 anions while the cation sites comprises of vacancies when x < 8. More recent studies [19,16,12] on Al-O-N phases have focus on synthesis and fabrication as well as the phase relation of these systems both on the experimental and theoretical level. However, relatively little work has been directed towards the elastic properties of these structures.…”

Dielectric properties of aluminium nitride–γ-alon materials

“…Dried and granulated powders were hot-pressed at 1950 • C for 2 h under 25 MPa in nitrogen flow. 18 Phase composition of the sintered samples and lattice parameters of the relative phases were determined by X-ray diffraction analysis (X'Pert Pro, Philips) using the Rietveld refinement method. 19 For electrical measurements the hot-pressed materials were cut into rectangular samples (∼5 mm × 5 mm × 3 mm) and two parallel plates were coated by silver electrodes.…”