Introduction

TechCeramic is specialized in pyrolytic boron nitride (PBN) which is an advanced ceramic, the purity can reach 99.999%, featured with acid and alkali resistance, oxidation resistance, high thermal conductivity, machinable. It is formed by chemical vapor deposition (CVD) of ammonia and boron halide under high temperature and high vacuum conditions.

Features

  • Non-toxic, odorless
  • Ultra high purity
  • resistant to acid, alkali, salt and organic reagent at room temperature, slightly corrodes in molten salt and alkali solution, but can resist the corrosion of various acids at high temperature
  • Good oxidation resistance under 1000℃
  • Good thermal shock resistance
  • Good electrical insulation
  • Low porosity

Property

PBN

Material
PBN

 
Bulk Density g/cm3
1.95-2.20
Hardness Knoop MPa
680
Flexural Strength MPa
127
Compressive Strength MPa
304

Thermal Conductivity

(200℃) W/m·k

"a" 60

"b" 2.6
Dielectric Strength KV/mm
200
Resistivity (1000℃) Ω cm
3*109

Applications

  • Crucibles for In situ synthesis of GaAs, InP, GaP and other semiconductor single crystals
  • Crucibles for molecular beam epitaxy
  • Insulation parts for high temperature vacuum furnace
  • Insulation coating for graphite heaters
  • Nozzles
  • Insulating plates and rings

Related Products

  • MBE Crucible
  • VGF Crucible
  • LEC Crucible
  • PBN Evaporation Boat
  • PBN Rod
  • PBN Plate
  • PBN Ring