Anomalies in mid-high-temperature linear thermal expansion
... acoustic properties [1–3], metallic foams are drawing increasing attention from both the academic and industrial fields. A lot of works discussed the dependence of the mechanical properties on the structural parameters [4–8] and properties of the cell wall material [9, 10]. It has been revealed that ...
... acoustic properties [1–3], metallic foams are drawing increasing attention from both the academic and industrial fields. A lot of works discussed the dependence of the mechanical properties on the structural parameters [4–8] and properties of the cell wall material [9, 10]. It has been revealed that ...
Mini- Implant Materials: An Overview
... strength23. The strength is beneficial because materials better resist occlusal forces without fracture or failure. Lower modulus is desirable because the material better transmits forces to bone. This property leads to more even distribution of stress at critical bone-implant interface because the ...
... strength23. The strength is beneficial because materials better resist occlusal forces without fracture or failure. Lower modulus is desirable because the material better transmits forces to bone. This property leads to more even distribution of stress at critical bone-implant interface because the ...
L-5: Thermodynamics of Mixtures (Chapter 7)
... can move into this hole in an electric field. Since the electric current is carried by what appears to be positive charges, the semiconductor is called "p-type." For example, B in Si: More in section 12.11 in the text. ...
... can move into this hole in an electric field. Since the electric current is carried by what appears to be positive charges, the semiconductor is called "p-type." For example, B in Si: More in section 12.11 in the text. ...
Thermodynamics and Kinetics of Solids 21 ________________________________________________________________________________________________________________________
... of isoperibolic or isothermal calorimeters. The substance is being heated to the desired temperature and dropped into the calorimeter. The hot sample is either directly dropped into the liquid within the calorimeter (water, paraffin,...) or into a beaker that is surrounded by water. In the case of p ...
... of isoperibolic or isothermal calorimeters. The substance is being heated to the desired temperature and dropped into the calorimeter. The hot sample is either directly dropped into the liquid within the calorimeter (water, paraffin,...) or into a beaker that is surrounded by water. In the case of p ...
Magnetic Materials Background: 5. Properties
... anisotropy field, Ha (illustrated in figure 4), which is the field required to rotate all the moments by 90° as one unit in a saturated single crystal. The anisotropy is caused by a coupling of the electron orbitals to the lattice, and in the easy direction of magnetisation this coupling is such tha ...
... anisotropy field, Ha (illustrated in figure 4), which is the field required to rotate all the moments by 90° as one unit in a saturated single crystal. The anisotropy is caused by a coupling of the electron orbitals to the lattice, and in the easy direction of magnetisation this coupling is such tha ...
Oxide-ceramic products for high-temperature technology
... Figure 3 shows the thermal expansion of DEGUSSIT AL23, AL24, AL25, FZY and that of stainless steel 1.4571, as a function of temperature. The chart depicts clear differences between Al2O3 and ZrO2 ceramics, as well as between steel and ceramics in general. Due to the high compressive strength of the ...
... Figure 3 shows the thermal expansion of DEGUSSIT AL23, AL24, AL25, FZY and that of stainless steel 1.4571, as a function of temperature. The chart depicts clear differences between Al2O3 and ZrO2 ceramics, as well as between steel and ceramics in general. Due to the high compressive strength of the ...
Hesham Mohsen - Smart Materials
... For the next few decades, piezoelectricity remained something of a laboratory curiosity. More work was done to explore and define the crystal structures that exhibited piezoelectricity. This culminated in 1910 with the publication of Woldemar Voigt's Lehrbuch der Kristallphysik (Textbook on Crystal ...
... For the next few decades, piezoelectricity remained something of a laboratory curiosity. More work was done to explore and define the crystal structures that exhibited piezoelectricity. This culminated in 1910 with the publication of Woldemar Voigt's Lehrbuch der Kristallphysik (Textbook on Crystal ...
CERAMICS MATERIALS - Wits Structural Chemistry
... The 3d-metal oxides such as MnO, FeO, CoO and NiO are semiconductors and TiO and VO are metallic conductors. 3d-metal oxides - MnO, Fe1-xO, CoO and NiO have low conductivity that increase with temperature or have such large band gaps that become insulators. The electron-hole migration in these oxide ...
... The 3d-metal oxides such as MnO, FeO, CoO and NiO are semiconductors and TiO and VO are metallic conductors. 3d-metal oxides - MnO, Fe1-xO, CoO and NiO have low conductivity that increase with temperature or have such large band gaps that become insulators. The electron-hole migration in these oxide ...
Shape-memory alloy
A shape-memory alloy (SMA, smart metal, memory metal, memory alloy, muscle wire, smart alloy) is an alloy that ""remembers"" its original shape and that when deformed returns to its pre-deformed shape when heated. This material is a lightweight, solid-state alternative to conventional actuators such as hydraulic, pneumatic, and motor-based systems. Shape-memory alloys have applications in industries including automotive, aerospace, biomedical and robotics.