Archives

  • 2018-07
  • 2018-10
  • 2018-11
  • br Data This paper presents the required

    2018-11-14


    Data This paper presents the required data and examples on proper characterization of BCP. This can be applied to other similar materials in the field of bone tissue engineering [2]. Data on use of XRD (X-ray diffraction), SEM (scanning electron microscope), mechanical testing (MT) and other investigations have been provided. Fig. 1. XRD showing the crystallographic pattern and corresponding peaks of HA and β-TCP according to ICDD (International Center for Diffraction Data) database. Fig. 2. XRD pattern of different composition ratios of BCP. The intensity and pattern of corresponding peaks change according to the relative composition ratio of HA/ β-TCP. Fig. 3. SEM image of HA particles illustrating analysis of morphology and dimension. Fig. 4. The stress–strain curves for the BCP scaffolds. The scaffold has an initial elastic region where the deformations are reversible (elastic deformation), followed by a plastic region before failure presented by a sudden drop in the cure which indicate irreversible change (fracture). Table 1. Recommended investigations for characterization of BCP bioceramics and other bone substitute biomaterials.
    Experimental design, materials and methods An electronic data salvinorin a search on PubMed was performed to recruit related literature on BCP including data on basic biomaterials science, synthesis and characterization. Interested readers are referred to full text of this review paper for comprehensive review and recommendations [1].
    Experimental design, materials and methods
    Data
    Data The data presented here can be divided into two parts: (1) characterization of the two atomized powders including gas- and water-atomized powders (Fig. 1) and (2) densification observation of the BJP alloy 625 samples made from gas- and water-atomized powders in terms of optical microscopy micrographs (Figs. 2–4). The microscopy observations and density measurements conducted in this paper are based on experimental results presented in the publication from the authors [4].
    Experimental design, materials and methods Brief data overview of powder characterizations on the GA and WA powders are illustrated in Fig. 1. The data presented here includes powder size, shape, morphology and internal porosity collected using SEM, micro-CT and particle size distribution. The WA alloy 625 powder (HAI Advanced Material Specialists, Inc.) was irregular in shape having been created via an air-melted water atomization method while the GA alloy 625 powder (Carpenter Technology Corporation) was spherical in shape having been created via an air-melted nitrogen atomization method. As shown in Fig. 1e, the GA powder had smaller particle size distribution ranging from 18.6μm to 44.2μm with the average particle size of 32μm; however, the WA powder had wider particle size distribution between 17.6μm and 53.6μm with the average particle size of 34.5μm. Morphology as well as internal porosity of the WA and GA powders were observed with a Bruker SkyScan1272 micro-computed tomography scanner (micro-CT) at 100kV and 100μA and a 0.11mm Cu filter, averaging of 10 frames, and angular range of 0°–180° with 0.2°–0.3° steps. Powder particles were filled into a low absorbance 1.5mm plastic straw, gently compacted to reduce particle movement during scanning procedure and then scanned without random movement. It is found that WA powder had more internal porosity compared to GA powder. To fabricate three-dimensional samples, an M-Flex ExOne printer was used to print small coupons with dimensions of 10 mm×10 mm×5 mm. BJP samples from the WA and GA powders were printed with the following printing parameters: recoat speed of 130mm/s, oscillator speed of 2050rpm, salvinorin a roller speed of 250rpm, roller traverse speed of 15mm/s, drying speed of 17mm/s, and printing layer thickness of 100μm [1−3]. The total number of printed layers was 50. A cleaner made of 2-butoxyethanol and a water-soluble binder made of ethylene glycol monomethyl ether and diethylene glycol were used in this research [4].