alloy-diffusion temperature
121art, African — ▪ visual arts Introduction the visual arts of native Africa, particularly sub Saharan Africa, including such media as sculpture, painting, pottery, rock art, textiles, masks, personal decoration, and jewelry. For more general… …
122Nitinol biocompatibility — Metal implants containing a combination of biocompatible metals or used in conjunction with other biomaterials are often considered the standard for many implant types. When materials are introduced to the body it is important not only that the… …
123Planetary differentiation — In planetary science, planetary differentiation is the process of separating out different constituents of a planetary body as a consequence of their physical or chemical behaviour, where the body develops into compositionally distinct layers;… …
124Crystallite — Galvanized surface with visible crystallites of zinc. Crystallites in the steel under the coating are microscopic. Crystallites are small, often microscopic crystals that, held together through highly defective boundaries, constitute a… …
125History of the transistor — Invention of the transistor= The first patent [patent|US|1745175|Julius Edgar Lilienfeld: Method and apparatus for controlling electric current first filed in Canada on 22.10.1925, describing a device similar to a MESFET] for the field effect… …
126Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
127Superplasticity — In materials science, superplasticity is a state in which solid crystalline material is deformed well beyond its usual breaking point, usually over about 200% during tensile deformation. Such a state is usually achieved at high homologous… …
128Microthermal analysis — is a materials characterization technique which combines the thermal analysis principles of differential scanning calorimetry (DSC) with high spatial resolution of scanning probe microscopy. The instrument consists of a thermal probe which is… …
