Nettet1. apr. 2024 · A (Hf-Ta-Zr-Nb-Ti)C high-entropy carbide was prepared by ball milling and a two-step Spark Plasma Sintering process, achieving a single-phase ceramic sample with a high relative density of 99.4%. Nettet1. feb. 2014 · Additive-free β-SiC nanopowders were densified by spark-plasma sintering in the temperature range 1650–2200 °C, holding time 1–30 min, and pressure 50–150 …
Joining of β-SiC by spark plasma sintering
Nettet18. jul. 2024 · During joining, a liquid phase was formed by the eutectic reaction among Y 3 Si 2 C 2, γ (Y—C) phase, and SiC, followed by the precipitation of SiC particles. The presence of the liquid promoted the sintering of newly formed SiC particles, leading to their complete consolidation with the C f /SiC matrix. Nettet22. okt. 2024 · Phase analysis of sintered composites reveals suppressed β→α phase transformation due to low sintering temperature, nitride additives, and nitrogen sintering atmosphere. With increase in TiB 2 … elmira ontario white pages
Joining of C/SiC composites by spark plasma sintering …
Nettet11. apr. 2024 · Preparation of laminated ceramics. The ZrB 2-SiC laminated ceramics are prepared with different particle sizes of ZrB 2 and SiC for each sublayer. Commercially available ZrB 2 powders (particle size: 100 nm, 500 nm, and 3–5 µm, purity > 99.9%, Beijing Forsman Scientific Co. Ltd., China) and nano-sized SiC powders (particle size: … Nettet31. mai 2014 · In this study, we have investigated how the dielectric loss tangent and permittivity of AlN ceramics are affected by factors such as powder mixing methods, milling time, sintering temperature, and the addition of a second conductive phase. All ceramic samples were prepared by spark plasma sintering (SPS) under a pressure of 30 MPa. Nettet29. jan. 2014 · In general, the joining of SiC ceramics using Ti foil has to-date only been investigated under a vacuum atmosphere. Grasso et al. [15] used spark plasma … elmira ontario food bank