Effect of heating rate on microstructural homogeneity of sintered W–15wt%Cu nanocomposite fabricated from W–CuO powder mixture

Consolidation and microstructures of microwave sintered W-25Cu alloys with Fe addition

“…So, microwave sintering obviously benefits the microstructures due to its fast heating rate. An investigation by Kim et al also demonstrates an analogous effect of heating rate in conventional sintering [33] .…”

Microwave sintering W–Cu composites: Analyses of densification and microstructural homogenization

“…Higher sintering temperature or longer soaking time is of practical efficiency, however these actions always lead to Cu exudation and as a consequence inhomogeneous microstructure [3]. Substituting elemental powders with compounds like CuO [4], adding sintering activators like transition metals [5], and powder activation treatment like mechanical alloying [6] are all efficient approaches to improve material sinterability. Also novel sintering strategies have been explored to enhance W-Cu composite densification, including resistance sintering [7], plasma spraying [8] and laser sintering [8].…”

Solid state and liquid phase sintering of mechanically activated W–20wt.% Cu powder mixture

“…In contrast to the sintering response of the conventionally prepared W-Cu compacts that SPS and formation of sinter bonds could have detrimental influence on the rearrangement process during LPS [14], SPS plays an important role in the densification of the nanocrystalline materials. Studies [15][16][17][18] have shown that over 85% of the sintering shrinkage can be achieved via SPS. Meanwhile, complete densification, maintenance of nanocrystalline structure and shape retention are three main concerns in sintering of W-Cu nanocomposites [19][20][21].…”