The microelectronic devices are formed by a substrate that supports the functional thin film material. The thermal, electrical, and mechanical properties of the system depend strongly on the interfacial properties between a film and a substrate. The interfacial nature in a film/substrate system originates the thermal contact resistance (Rtc). We discuss the thermal and the electrical behavior
(PDF) Alumina-Mullite Refractories:prototypal components The results of thermal shock tests showed that 150 MPa pressing led to enough thermal shock resistance for a possible application in combustion chamber of gas turbines. By these measurements it was demonstrated that, even using 20% of ceramic waste, it is possible to obtain better performances than the ones of the commercial refractories
J. Am. Ceram. Soc., 88  32223225 (2005) DOI:10.1111/j.1551-2916.2005.00550.x r 2005 The American Ceramic Society Journal Processing and Thermal Shock Resistance of a Polymer-Derived MoSi2/ SiCO Ceramic Composite Luca Bergero, Vincenzo M. Sglavo,* and Gian Domenico Soraru*,w Dipartimento di Ingegneria dei Materiali e Tecnologie Industriali, Universita` di Trento, I-38050 Trento,
Effect of thermal shock conditions on reliability of chip (thermal shock resistance parameter). Chang and co-authors [5-7] used ice water test (IWT) to study fracturing in multilayer ceramic capacitors of different size. It was shown that the thermal shock resistance decreases in a row 0402, 0603, 0805, and 1206 capacitors, and the corresponding critical temperatures are 400 oC, 300
Improvement in the Thermal Shock Resistance of Zirconia ZrO2-Al2TiO5 composite materials with high bending strength and good thermal shock resistance expansion were prepared using partially stabilized zirconia (Y-PSZ) powders coated with Al2TiO5 by co-precipitation method. The effects of Al2TiO5 content on the sintering properties, phase composition, microstructure and thermal shock resistance of the zirconia ceramic were investigatedThe results
thermal shock resistance of materials is a crucial factor determining the durability. Therefore, understanding and assessing the thermal shock and fatigue behavior of ceramics are of great importance for the application with high reliability at elevated temperature [3,12]. In
Normalized evaluation of thermal shock resistance for thermal shock resistance of materials is a crucial factor determining the durability. Therefore, understanding and assessing the thermal shock and fatigue behavior of ceramics are of great importance for the application with high reliability at elevated temperature [3,12]. In
On the thermal shock resistance and mechanical properties The flexural strength increased from 360 to 550 MPa from room temperature to 1500 °C, showing a non-brittle behaviour. The composites were able to sustain a thermal shock severity as high as 1500 °C. The maximum decrease of strength at 1400 °C was 16% of the initial value, indicating that the samples could be shocked at even higher temperature.
The importance of selecting suitable bodies, as a means of controlling crazing, became evident at once when it was found that bodies with a high resistance to thermal shock were not so liable to craze when glazed and subjected to sudden temperature changes as those with a low resistance to thermal shock.
THERMAL SHOCK RESISTANCE OF A SODA LIME GLASSThermal shock resistance of a soda lime glass Ceramics Silikáty 57 (1) 39-44 (2013) 41 The test made is a descendant thermal shock test type. Its severity is eed in term of the Biot number ( = 0.3). We used a heat transfer coefficient h = 600 W/m2.°C . During the thermal shock
The effect of carbon and polypropylene fibers on thermal It was found that the addition of carbon fiber has a positive impact on the thermal shock resistance of the investigated castable, which is confirmed by the results obtained by thermal cycling, as well as by the values calculated for thermal shock resistance R 4 and R st. In addition, the results of the investigation of thermal cycling show
The excellent thermal shock resistance of the C 2 S-25CZ coating must be attributed to thermal stress release by the vertical micro-cracks. The X-ray diffraction pattern of the sprayed coatings is shown in Fig. 3.In the C 2 S-CZ system, , and -C 2 S phases were identified. In particular, the C 2 S-25CZ coating exhibited a broad diffraction pattern, indicating that it had an amorphous
Thermal Shock and Drop Test Performance of Lead-free assemblies subjected to mechanical shock in the as-soldered condition and also after 200 and 500 thermal shock cycles at -55 to 125 C. The mechanical shock test was conducted by subjecting the assemblies to 30-drop cycles from a height of 3ft. After each drop cycle the daisy chains were checked for continuity for the solder joint evaluation.
Thermal-Shock Resistance and Fracture-Strength Nov.-Dec. 1976 Thermal-Shock Resistance and Fracture-Strength Behavior of Tool Carbides 493 As shown in Figs. 2 and 3, ucl for WC and Tic is independent of the number of repeated shocks for 25"C< T < 800°C.However, at -- 800"C, thermal fatigue effects caused by repeated shocks were observed in WC since internal flaws grew during each shock.
the thermal shock resistance of a brittle material are obtained in closed form over the full range of Biot number. The paper begins by reviewing the transient tem-perature and stress distributions in a homogeneous orthotropic plate over the full range of Biot num-ber, Bi hH=k. Closed-form eions are