Harbin Xinhui

Hot-pressed sintered boron carbide method is production process that simultaneously heats and pressurizes during sintering process to form densification, and obtains boron carbide ceramic material that has the best performance comparing with other sintering methods. However, due to the constraints of hot-pressing process, the obtained products have restriction in size, shape and production quantity. This process is only

suitable for small batch production of high-performed and simple-shaped products. The cost is relatively higher and the production cycle is slightly longer. Performance characteristics: high hardness (> HV3300), high strength, good wear resistance, and small density. Suitable for: hard panels in advanced bulletproof armor, blast nozzles, water cutting nozzles, etc.

Ceramic Panel for Bulletproof Armor

Performance	Unit	Pressureless Sintered Silicon Carbide	Adopted Standard
Purity	B4C-Wt%	>99
Density	g/cm3	>2.50	ASTM C 20
Grain size	μm	5-10	ASTM E 112
Modulus of elasticity	MPa	320	ASTM C 848
Compression strength	GPa	4.2	GB/T8489-2006
Bending strength	MPa	355	GB/T6569-2006
Fracture toughness	MPa m1/2	4.11	GB/T23806-2009
Hardness	HK500	>3300	GB/T16534-2009
Poisson ratio		0.16	-
Specific heat capacity	J/kg K	710	-
Heat conductivity	W/m K	87	ASTM C 408
Coefficient of thermal expansion	10-6K-1 (0-1500oC)	4.12	GB/T16535-1996
Weibull modulus		9	ASTM C 1239

Ceramic Materials

TEL：0451-84368085
0451-84368082
0451-82296796
Fax：0451-84368083
Addr：No.18 Donghu Street, Daoli District, Harbin
Zip code：150090