[PDF] Top 20 Property Control of Ti Compacts in Spark Sintering Process

... The control of properties such as microstructure, density, strength and elongation, on Ti compacts was successfully achieved by the optimization of process parameters in spark ... See full document

... dense compacts with nanocrystalline microstructure in a very short time of 600 s by means of the SPS process at 1273 ...the compacts exhibit superior mechanical ...SPS process indicated that ... See full document

... observation and inverse pole figure mappings were conducted in normal direction to the cross-section of the welds. EBSD test areas were selected from the centre of the fusion zones. Differential scanning calorimetry (DSC) ... See full document

... to Ti. The difficulty in bonding between Ti and Mg is no intermetallic compounds existing between them in the binary phase diagram ...bond Ti-6Al-4V and AZ31B (Magnesium alloy) together by transient ... See full document

... time at sintering temperature was 10 min. A uniaxial pressuring method was conducted using top and bottom WC hard metal punches. The loading pressure was 600 MPa in the present study. The details of heating, ... See full document

... plasma sintering is one of latest technique used in rapid ...a sintering technique which uses electric current or spark to give the temperature in a limited and continuous manner as per demand for ... See full document

... the process itself is still not completely understood. The SPS process is governed by a complex bulk and contact ...to control the temperature gradient along the ... See full document

... consolidation process, such as in hot pressing ...full-density compacts with retaining nanometric grain size (nanostructured alloy), is of essential significance in interconnector SOFC application, which ... See full document

... by spark sinter- ...the spark-sintering system. The spark- sintering process had two modes, a pulse discharge sintering mode and a continuous discharge sintering ... See full document

... a sintering temperature of ...a sintering time of 1500 to 3600 ...shorter sintering time inhibited grain ...SPS process using the direct heating method is uniform below ... See full document

... between powder particles, and improve the properties of the sintered porous BMG specimens. On the contrary, if the temperature is too high, it will cause the crystallization of the glassy alloys, resulting in the ... See full document

... and Ru powder was placed in a carbon die with a diameter of 10 mm for the SPS processing on SPS SYNTEX INC. (DR. SINTER. LAB., SPS-515S). The temperature of the speci- men was increased from ambient temperature to 873 K ... See full document

... at process temperatures of 520 and 700°C, the final average grain sizes were 100 and 250 nm ...a process temperature of 1000°C, the grains grew significantly to 2 μm in size ...the sintering ... See full document

... This research is focusing on the effect of temperatures on (70 wt% HA, 30 wt% CTS) composite layer onto Titanium Alloy (Ti-6Al-4V) substrate. HA (Merck, US) and Chitosan (CTS) powder were used in this study as the ... See full document

... characterizing spark plasma sintering (SPS) and subsequently the fast heating rate attainable within a short sintering time makes it a suitable procedure by which highly dense bulk nanostructured ... See full document

... Bulk nanocrystalline metals and alloys can be produced by high energy milling of powders and their consolidation by sintering techniques characterized by a low thermal load in order to minimize grain growth. This ... See full document

... density, linear shrinkage and Vickers hardness of each layer of graded materials were measured. The microstructure and the composition of these components were studied. The results obtained show that functionally graded ... See full document

... i) Elemental Blend (BE), in which a blend of elemental powders, along with master alloy or other desired additions, is cold pressed into shape and subsequently sintered to higher density and uniform chemistry; ii) Pre- ... See full document

... reduces sintering times from hours to ...lower sintering temperatures, 66 improved mechanical properties, 29,69,70 and smaller grain ...without sintering aids, aluminum 16 and tungsten 55 powders ... See full document

... after sintering at 200˚C with aluminium particle size 20 µm the porosity level is apparently equal to ...after sintering observed here, is also similar to that of the work reported by Lumley et ... See full document