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high thermal conductivity of sparkplasma in switzerland

Spark plasma sintering of cerium dioxide and its

Consequently, powder metallurgy techniques are widely employed to overcome the limitations of ceramic processing. In this thesis, studies on the processing of cerium dioxide and its composites using a novel sintering technique called Spark Plasma Sintering (SPS) were carried out.

Functionally Graded Materials 1996 - PDF Free …

As shown in Figure 8, the graded structure of AIN/W, which can satisfy both high thermal conductivity and high emissivity, has different characteristics compared with conventional materials [15]. In this program, further investigation will be carried out mainly on the following topics. 1) Modeling and evaluation of graded thermoelectric materials.

High performance Bi2Te3 nanocomposites - …

Abstract. The last decade has witnessed nanocomposites becoming a new paradigm in the field of thermoelectric (TE) research. At its core is to prepare high performance TE nanocomposites, both p- and n-type, in a time and energy efficient way.To this end, we in this article summarize our recent effort and results on both p- and n-type Bi 2 Te 3-based nanocomposites prepared by a unique single

Electrical aspects of the spark-plasma sintering of TiN

The electrical aspects of spark-plasma sintering (SPS) of TiH 2 –BN and Ti + BN powder mixtures for the production of a TiN–TiB 2 ceramic composite material are studied, and the dependence of its properties on direct-current density at the initial stage of sintering is established. To determine the direct-current density, a method for calculating the effective cross-sectional area S eff of

Full conference papers

Nomenclature, Briggs and Rose (2009) A,a ∅ Empirical constants in equations 10 and 11 Observed retention angle measured from top of tube 0 Vapor-side, heat transfer coefficient,⁄∆ s Spacin between fins at fin root Vapor-side, heat transfer coefficient for free p Pressure p Fin pitch k Thermal conductivity convection Vapor-side, heat

Spark plasma sintering of cerium dioxide and its

Consequently, powder metallurgy techniques are widely employed to overcome the limitations of ceramic processing. In this thesis, studies on the processing of cerium dioxide and its composites using a novel sintering technique called Spark Plasma Sintering (SPS) were carried out.

Materials | Free Full-Text | Localized Overheating

The present paper shows the appliion of a three-dimensional coupled electrical, thermal, mechanical finite element macro-scale modeling framework of Spark Plasma Sintering (SPS) to an actual problem of SPS tooling overheating, encountered during SPS experimentation. The overheating phenomenon is analyzed by varying the geometry of the tooling that exhibits the problem, namely by modeling

Localized Overheating Phenomena and Optimization …

heat capacity and k T is the thermal conductivity, Switzerland. This ar ticle is an Localized Overheating Phenomena and Optimization of Spark-Plasma Sintering Tooling Design.pdf.

Optical Properties of (Oxy)Nitride Materials: A Review

Optical Properties of (Oxy)Nitride Materials: A Review. Rong-Jun Xie,,* and Hubertus T. (Bert) Hintzen,*Sialon Group, Energy and Environment Materials Division, National Institute for Materials Science, Namiki 1-1,

Optical Properties of (Oxy)Nitride Materials: A Review

Optical Properties of (Oxy)Nitride Materials: A Review. Rong-Jun Xie,,* and Hubertus T. (Bert) Hintzen,*Sialon Group, Energy and Environment Materials Division, National Institute for Materials Science, Namiki 1-1,

Electrical aspects of the spark-plasma sintering of TiN

The electrical aspects of spark-plasma sintering (SPS) of TiH 2 –BN and Ti + BN powder mixtures for the production of a TiN–TiB 2 ceramic composite material are studied, and the dependence of its properties on direct-current density at the initial stage of sintering is established. To determine the direct-current density, a method for calculating the effective cross-sectional area S eff of

A study on the thermal conductivity of compacted …

2008-11-5 · A study on the thermal conductivity of compacted bentonites Anh-Minh TANG, Yu-Jun CUI, Trung-Tinh LE Ecole des Ponts ParisTech, UR Navier/CERMES, 6 et 8, av. Blaise Pascal, Cité Descartes, Champs-sur-Marne, 77455 Marne La Vallée CEDEX 2, France. Abstract Thermal conductivity of compacted bentonite is one of the most important properties in the

Materials | Topical Collection : Spark-Plasma Sintering

2012-11-10 · A coination of the high damage tolerance of TRIP-steel and the extremely low thermal conductivity of partially stabilized zirconia (PSZ) can provide controlled thermal-mechanical properties to sandwich-shaped composite specimens comprising these materials. Sintering the (TRIP-steel-PSZ)/PSZ sandwich in a single step is very difficult

High performance Bi2Te3 nanocomposites - …

Abstract. The last decade has witnessed nanocomposites becoming a new paradigm in the field of thermoelectric (TE) research. At its core is to prepare high performance TE nanocomposites, both p- and n-type, in a time and energy efficient way.To this end, we in this article summarize our recent effort and results on both p- and n-type Bi 2 Te 3-based nanocomposites prepared by a unique single

Sintering of Ceramics SINTERING OF – NEWCERAMICS EMERGING TECHNIQUES Edited by Arunachalam Lakshmanan

Thermal conductivity and dielectric constant of spark

The microstructure, thermal conductivity and dielectric constant of SPS AlN samples are examined. Results show that SPS can fabrie samples with superior thermal properties. Addition of 1 wt.% CaF 2 was found to have expedited the sintering process and this yielded thermal conductivity of …

Materials | Free Full-Text | Localized Overheating

The present paper shows the appliion of a three-dimensional coupled electrical, thermal, mechanical finite element macro-scale modeling framework of Spark Plasma Sintering (SPS) to an actual problem of SPS tooling overheating, encountered during SPS experimentation. The overheating phenomenon is analyzed by varying the geometry of the tooling that exhibits the problem, namely by modeling

Coefficient of friction and wear resistance of

CERAMICS INTERNATIONAL Available online at 0272-8842/& 20 nCorrespondin ETSEIB, Diago fax: 34 934016 E-mail addre 1Also at:

Thermoelectric properties of spark-plasma sintered

Spark plasma sintering was used as consolidation method to maintain the particle size. The thermoelectric performance of FeSb 2 is limited by its high thermal conductivity. In this work, the thermal conductivity was suppressed by nearly 80% compared to the bulk value by introducing grain boundary stering of phonons on the nanoscale.

High performance Bi2Te3 nanocomposites prepared …

High performance Bi2Te3 nanocomposites prepared by single-element-melt-spinning spark-plasma sintering a Thermal conductivity and b ZT values of temperature dependence for SE …

Effect of micron and nano-sized ZrB2 addition on the

The need to improve the thermal properties of materials used in electronics and automobile industries has led to the search for light materials such as graphite aluminum (Gr–Al) composites. This work

High Thermal Conductivity Materials | MRS Bulletin

2011-1-1 · Every university student becomes familiar with the concept of thermal conductivity, a fundamental physical property of materials, through his or her textbooks. Initial work on high thermal conductivity was carried out in 1911 by Eucken, who discovered that diamond was a reasonably good conductor for heat at room temperature.

High thermal conductivity of spark plasma sintered …

High‐resolution transmission electron microscopy revealed two different SiC‐SiC boundaries, that is, amorphous and clean boundaries, in addition to a fully crystallized junction phase. A high thermal conductivity was attributed to a low lattice oxygen content and the presence of clean SiC‐SiC boundaries.

Coefficient of friction and wear resistance of

CERAMICS INTERNATIONAL Available online at 0272-8842/& 20 nCorrespondin ETSEIB, Diago fax: 34 934016 E-mail addre 1Also at:

Materials | Topical Collection : Spark-Plasma Sintering

2012-11-10 · A coination of the high damage tolerance of TRIP-steel and the extremely low thermal conductivity of partially stabilized zirconia (PSZ) can provide controlled thermal-mechanical properties to sandwich-shaped composite specimens comprising these materials. Sintering the (TRIP-steel-PSZ)/PSZ sandwich in a single step is very difficult

Sintering of Ceramics SINTERING OF – NEWCERAMICS EMERGING TECHNIQUES Edited by Arunachalam Lakshmanan

Localized Overheating Phenomena and Optimization …

Localized Overheating Phenomena and Optimization of Spark-Plasma Sintering Tooling Design Diletta Giuntini 1 , Eugene A. Olevsky 1,2, *, Cristina Garcia-Cardona 1 , Andrey L. Maximenko 2 ,

Full conference papers

Nomenclature, Briggs and Rose (2009) A,a ∅ Empirical constants in equations 10 and 11 Observed retention angle measured from top of tube 0 Vapor-side, heat transfer coefficient,⁄∆ s Spacin between fins at fin root Vapor-side, heat transfer coefficient for free p Pressure p Fin pitch k Thermal conductivity convection Vapor-side, heat

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