approximately 50 min. Commercially available, HApowders (Alfa Aesar, Ward Hill, MA) where calcined at 1100 -C for 1 h and sieved to a particlesize < 35 Am. Hydroxyapatite ... -C for 5 min were used for the calcinedHA, while 220 -C for 5 min was employed for the
Fig. 10.4 shows the particle-sizedistribution for the HApowdercalcined ... of the average sizedparticles. The effect of deagglomeration time on the rheological characteristics of the 66 wt% slurries prepared from the 1000 ºC-calcinedpowder are reported
Fig. 1. XRD patterns of HApowderscalcined at different temperatures compared with HTHA. Table 1 Table showing the crystallinity of HA and comparing the particlesize ... at 40 °C for 24 h in a dry oven. This dried powder was calcined in air at different ... a heating rate of 10 °C/min. Based on the calcination temperature, the HA batches
environment (Kim et al 2000). XRD patterns of the dried HA gel powdercalcined ... Figure 2. XRD patterns of HApowders (a) calcined at different temperatures ... the crystallinity of HA and comparing the particlesize obtained from XRD and PSD at different
examined by considering particledistribution in the powder. Figure 9(a) shows the particlesize analysis for 15%, 500ºC Zn-BCP. The large portion of sizedistribution ... distribution. Meanwhile in Figure 9(b), the particlesizedistribution is 100
Solid State Science and Technology, Vol. 17, No 2 (2009) 24-31 ISSN 0128-7389 (3.3) X-Ray Diffraction (XRD) Solid State Science and Technology, Vol. 17, No 2 (2009) 24-31 ISSN 0128-7389
reported to be the optimal Co particlesize for Fisher–Tropsch synthesis over Co/CNF ... to Pt2+ at acidic conditions [38, 39]. The cobalt oxide formed during CoHA adsorption ... or the pure CoHA. Whereas the pure CoHA reduced at 320 ◦ C converts to CoCl2 ·2H2
which were determined with particlesize analyzer. DSS-HA and U-HA showed bimodal particlesizedistributions (Fig. 3a and 3b), while sample M-HA had a unimodal particlesizedistribution ... Range (µm) Sample M-HA − − − U-HA DSS-HA BET (Table 1) and laser particlesize (Table 2) analyzes exhibited micro-sizedHApowders although nano-sizedparticles were seen in SEM images for the same powders ... to the strong agglomeration in the DSS-HA sample. Micro-sizedparticles occurred as a result
the particlesizedistribution of the powder. Obviously, for 85% of the particles ... by the nature of the molecular barium titanium double alkoxide. The particlesize analysis ... To make sure that the calcination of the precursor prepared via spray
transformation of nano-scaled Al2O3 particles reflects some basic characters of the powder ... and the followed interaction. 2) The spatial homogeneity, the state of agglomeration, the sizedistribution of the powder system, and 3) The packing density or the distance