Physical Properties

Reactor Powders (as precipitated). These properties can be varied within a wide range to suit different applications. The following SEM photographs and table illustrates some aspects of this variation with two samples of HA produced by the Reactor. In addition a wide variation in Particle size distributions can be engineered to give Mono-modal, or Bi-Modal distributions. Some distributions are better suited for extrusion of composites, whilst others are better suited for sintering in order to manufacture fully dense or partially densified ceramics. Contact us to discuss your requirements.

Reactor Powder	Sintered Powder

	HA	SAMPLE	SAMPLE
	UNITS	'A'	'B'
D(50) (laser diffraction)	microns	3.29	5.18
Surface Area	m2/gram	13.41	5.91
Bulk density	gram/ml3	0.62	0.62
Green density	%	58.6	52.2
Sintered density @1250 DegC	%	97.3	86.1
Hardness	HV	482	278

Subsequent processing by sintering and crushing followed by particle elutriation can produce spray grade powders of different size distributions

HA Sample Type	CAPTAL'30'	CAPTAL'60/1'	CAPTAL'60'	CAPTAL'90'
Size d(50) UnitsMicrons	30±5	45±5	60±10	90 ±15
Size d(10) UnitsMicrons	15±5	20±5	35±10	50±15
Size d(90) UnitsMicrons	50±5	80 ±10	100±15	120 ±20
Bulk Density g/ml3	1.18 ±0.1	1.30±0.1	1.10±0.1	1.45 ±0.2