질화붕소 응집체 분말

• Main Authors: NAHAS NABIL, BAHON ELODIE, BOUSSANT ROUX YVES
• Format: Patent
• Language: Korean
• Published: 26.02.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

본 발명은 질화붕소 응집체로 실질적으로 이루어진 분말에 관한 것이다. 상기 분말은 40 내지 45 중량%의 붕소, 53 내지 57 중량%의 질소, 400 ppm 미만의 칼슘, 총 5 중량% 미만의 다른 원소 및 모든 결정화된 상에 기초하여 중량 백분율로, 한계값을 포함한 90 중량% 초과의 질화붕소의 전체 화학적 조성, 0.90 이상의 평균 원형도, 0.5 ㎛ 이하의 중앙 세공 크기, 및 55% 이하의 개방된 다공도를 갖는다. A powder essentially composed of aggregates based on boron nitride, the powder exhibiting an overall chemical composition, as percentages by weight, including between 40 and 45% of boron, between 53 and 57% of nitrogen, less than 400 ppm by weight of calcium, less than 5 %, in total, of other elements and more than 90% of boron nitride, limit included, as percentage by weight and on the basis of the combined crystalline phases, a mean circularity of greater than or equal to 0.90, a median pore size of less than or equal to 1.5 μm and an apparent porosity of less than or equal to 55%.