TY JOUR TI INCREASING THE PHYSICAL AND MECHANICAL CHARACTERISTICS OF TECHNICAL ALUMINA CERAMICS USING LOW-PRESSURE HIGH-FREQUENCY DISCHARGE PLASMA KW alumina ceramics KW plasma KW discharge KW pressure JO Transport engineering AU Nekrasov, I.K. AU Abdullin, I.S. AU Mastyukov, K.S. PY 2025 IS 2025 PB Bryansk State Technical University