SnO2:Sb – A new material for high-temperature MEMS heater applications: Performance and limitations

Aiming at the characteristics of pavement rutting damage of test road under the condition of heavy load and abrupt slope, an overlay design scheme and a new overlay material with high performance was proposed. The new material is PG82 modified asphalt SMA-13 added polyester fibre which can significantly improve the high temperature performance of asphalt mixture under severe environment, and its strength and crack resistance are superior to normal SMA-13. Tracking survey of test road shows that the pavement performances keeps good and rutting is under good control. Therefore those measurements are successful and can be a reference to similar projects.

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Modeling and Design of High Temperature Silicon Carbide DMOSFET Based Medium Power DC-DC Converter

Additional Conferences (Device Packaging HiTEC HiTEN & CICMT) ◽

10.4071/hitec-spotbhare-tp22 ◽

2010 ◽

Vol 2010 (HITEC) ◽

pp. 000144-000151

Author(s):

Siddharth Potbhare ◽

Akin Akturk ◽

Neil Goldsman ◽

James M. McGarrity ◽

Anant Agarwal

Keyword(s):

Silicon Carbide ◽

High Temperature ◽

High Efficiency ◽

Schottky Diodes ◽

Power Converter ◽

Electronic Systems ◽

High Temperature Electronics ◽

New Material ◽

Silicon Power Devices ◽

Relationship Of

Silicon Carbide (SiC) is a promising new material for high power high temperature electronics applications. SiC Schottky diodes are already finding wide acceptance in designing high efficiency power electronic systems. We present TCAD and Verilog-A based modeling of SiC DMOSFET, and the design and analysis of a medium power DC-DC converter designed using SiC power DMOSFETs and SiC Schottky diodes. The system is designed as a 300W boost converter with a 12V input and 24V/36V outputs. The SiC power converter is compared to another designed with commercially available Silicon power devices to evaluate power dissipation in the DMOSFETs, transient response of the system and its conversion efficiency. SiC DMOSFETs are characterized at high temperature by developing temperature dependent TCAD and Verilog-A models for the device. Detailed TCAD modeling allows probing inside the device for understanding the physical processes of transport, whereas Verilog-A modeling allows us to define the complex relationship of interface traps and surface physics that is typical to SiC DMOSFETs in a compact analytical format that is suitable for inclusion in commercially available circuit simulators.

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Examination of Microstructure of Cement Composite Material for Renovation of Horizontal Structures

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.808.103 ◽

2019 ◽

Vol 808 ◽

pp. 103-108

Author(s):

Lenka Mészárosová ◽

Vít Černý ◽

Rostislav Drochytka ◽

Winfried Malorny

Keyword(s):

Thermal Conductivity ◽

Composite Material ◽

High Temperature ◽

Surface Temperature ◽

Cement Composite ◽

Volume Weight ◽

Coefficient Of Thermal Conductivity ◽

New Material ◽

Properties Of Materials ◽

Low Volume

Development of new material is focused on modification of properties of materials with silicate binder so that these could be used for renovation of horizontal structures of high-temperature devices and at the same time contribute to reduction of heat transportation of constructions with higher surface temperature (in this case 200 and 500 °C). Main requirements for this material is low volume weight and low coefficient of thermal conductivity. This paper assesses influence of exposition to higher temperatures on microstructure.

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New Ceramic Composite from a Multioxide Eutectic Melt

MRS Proceedings ◽

10.1557/proc-634-b6.2.1 ◽

2000 ◽

Vol 634 ◽

Author(s):

Jose M. Calderon-Moreno ◽

Masahiro Yoshimura

Keyword(s):

High Temperature ◽

Ceramic Composite ◽

Layered Structures ◽

Kinetic Control ◽

Layered Nanostructures ◽

New Material ◽

Self Assembled ◽

In Situ Coating ◽

Eutectic Melt

ABSTRACTNew high temperature ceramic eutectic composites have been obtained. The composite is self-assembled in one quick step by rapid supercooling of the multioxide alumina-YAG-zirconia eutectic in an arc-image lamp furnace. The new material will find applications as in-situ coating and component for use at ultra-high temperature. Periodic self-assembled layered structures kinetically forced to solidify with interspacing in the submicron range will result in very interesting properties and applications for high temperature multioxide oxide eutectic composites, offering the challenge of design of layered nanostructures tailored to specific applications by kinetic control during solidification.

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Paper 9: Ceramic-Metal Composites: Nucerite

Proceedings of the Institution of Mechanical Engineers Conference Proceedings ◽

10.1243/pime_conf_1965_180_148_02 ◽

1965 ◽

Vol 180 (4) ◽

pp. 193-199

Author(s):

W. Wood

Keyword(s):

Corrosion Resistance ◽

High Temperature ◽

Abrasion Resistance ◽

High Temperature Corrosion ◽

Metal Composite ◽

Base Metals ◽

Metal Composites ◽

Good Corrosion Resistance ◽

Wide Range ◽

New Material

This paper describes ‘Nucerite’, a new material of construction consisting of a ceramic-metal composite which has improved mechanical strength and abrasion resistance over glassed steel. A wide range of ceramics is available and these can be bonded to a range of base metals, thus giving a very wide choice of properties. An outline of the induced crystalline structure in the ceramic shows how Nucerite is suitable for high temperature use together with good corrosion resistance. The application of Nucerite in the chemical and related industries shows how its versatility can be used to solve high temperature, corrosion, and abrasion problems. Examples of items of equipment, together with the conditions under which they are being used, confirms that there is a big future for Nucerite as it is developed and its properties are improved even further.

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Development of a Standard for Fusion Needs: Example of Introduction of Eurofer in RCC-MRx

Volume 5: Advanced Reactors and Fusion Technologies; Codes, Standards, Licensing, and Regulatory Issues ◽

10.1115/icone26-82337 ◽

2018 ◽

Author(s):

J. E. Muñoz Garcia ◽

C. Pétesch ◽

T. Lebarbé ◽

P. Lamagnère ◽

Y. Lejeail

Keyword(s):

High Temperature ◽

Research Reactor ◽

Fusion Reactors ◽

Vacuum Vessel ◽

Material Data ◽

New Process ◽

French And English ◽

New Material ◽

Set Up ◽

First Time

The 2018 edition of the RCC-MRx Code [1] will be issued by the end of the 2018, in French and English versions by AFCEN (Association Française pour les règles de Conception et de Construction des Matériels des Chaudières Electro-nucléaires). This Code set up design and construction rules of research reactor components (coming from the RCC-MX 2008 code developed within the context of the Jules Horowitz Reactor project), and to components operating at high temperature and to the Vacuum Vessel of ITER (coming from the RCC-MR 2007). The extension of the scope of the code to innovative systems such as fusion reactors leads to revisit the background of the code to define the requirements to introduce a new process or a new material. The developed methodology has been applied to the introduction of the Fe–9%Cr–1%W–TaV steel (Eurofer), today in the Probationary Phase Rules of RCC-MRx. It was the first time to introduce a “new” material into the code, new in the sense of non-existing in any current standardization. This process, still in progress, highlights the need to have a minimum of information on the expectation of the code regarding the material data. This paper describes the different steps of the introduction of the Eurofer in the RCC-MRx code as well as the tools developed to facilitate the process.

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New metals : a brief review of the present situation

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1964.0213 ◽

1964 ◽

Vol 282 (1388) ◽

pp. 57-62 ◽

Cited By ~ 1

Keyword(s):

High Temperature ◽

Electrical Properties ◽

Gas Turbine ◽

Dimensional Stability ◽

Present Situation ◽

Novel Device ◽

Nickel Chromium ◽

Chemical Constitution ◽

New Material ◽

Light Material

A substance becomes a material when it is employed to make some useful thing. The novelty of a new material lies either in the novelty of the physical or chemical constitution of the substance employed for a familiar application, or in the development of the special physical properties required in some novel device, or in the improvement of the efficiency of some known material in its application to a familiar device of such a kind that it makes practicable some hitherto impracticable application of the device, so that a new art arises based upon this improved material and the application which it makes possible. Examples of these three types of novelty, taken from our own times, are the development of titanium as a new strong and light material competitive with aluminium and steel, the production of crystals having the electrical properties required in electrical rectifiers and amplifiers, and the adaptation of nickel–chromium base alloys so as to have reliable dimensional stability under stress at high temperature, which made it possible to construct machines which would operate satisfactorily when red hot, and consequently to develop the industries based upon the modern gas turbine and the jet aircraft.

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