Design Development of High Temperature Manifold Converter Using Thin Wall Ceramic Substrate

1997 ◽  
Author(s):  
K. Umehara ◽  
T. Yamada ◽  
T. Hijikata ◽  
M. Makino ◽  
F. Katsube
Keyword(s):  
High Temperature ◽  
Ceramic Substrate ◽  
Thin Wall ◽  
Design Development ◽  
Wall Ceramic

The Innovative Reinforcement Technology of Thin Wall Ceramic Substrate Having High Coatability

2000 ◽  
Author(s):  
Masakazu Tanaka ◽  
Mamoru Nishimura ◽  
Masakazu Murata ◽  
Keiji Itou
Keyword(s):  
Ceramic Substrate ◽  
Thin Wall ◽  
Wall Ceramic

Reduction of High Temperature Thermal Conductivity of Thin-Wall Ceramic Spheres

2009 ◽  
pp. 464-464-12 ◽  
Author(s):  
AT Chapman ◽  
JK Cochran ◽  
TR Ford ◽  
SD Furlong ◽  
DL McElroy
Keyword(s):  
Thermal Conductivity ◽  
High Temperature ◽  
Thin Wall ◽  
Wall Ceramic

High Temperature Engine Component Exploratory Design Development

1989 ◽  
Author(s):  
Walter Bryzik ◽  
Melvin E. Woods ◽  
Ernest Schwarz ◽  
Paul Glance
Keyword(s):  
High Temperature ◽  
Design Development ◽  
Engine Component

Sandwich Structured Power Module for High Temperature SiC Power Semiconductor Devices

2014 ◽  
Vol 2014 (1) ◽  
pp. 000757-000762 ◽  
Author(s):  
Takeshi ANZAI ◽  
Yoshinori MURAKAMI ◽  
Shinji SATO ◽  
Hidekazu TANISAWA ◽  
Kohei HIYAMA ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
High Temperature ◽  
Semiconductor Devices ◽  
Ceramic Substrate ◽  
Power Module ◽  
Power Semiconductor ◽  
Power Semiconductor Devices ◽  
High Temperature Operation

A high temperature sandwich structured power module for high temperature SiC power semiconductor devices has been accomplished. Problems were found in the high temperature building-up process of the module caused by excess warpage of the ceramic substrate. Also the high temperature operation of the power module brings an excess warpage of the structure caused by parts having different coefficients of thermal expansion (CTEs) from each other. In this paper, some countermeasures to overcome the problems are demonstrated.

Influence of Powder Distribution on the Al2O3 Thin-wall Ceramic Formed by Laser Engineered Net Shaping

2015 ◽  
Vol 42 (1) ◽  
pp. 0103006 ◽  
Author(s):  
马广义 Ma Guangyi ◽  
王江田 Wang Jiangtian ◽  
牛方勇 Niu Fangyong ◽  
孙贝 Sun Bei ◽  
吴东江 Wu Dongjiang
Keyword(s):  
Thin Wall ◽  
Laser Engineered Net Shaping ◽  
Wall Ceramic ◽  
Net Shaping

Bonding of power device to ceramic substrate using Sn-coated Cu micro paste for high-temperature applications

2020 ◽  
Vol 515 ◽  
pp. 146060 ◽  
Author(s):  
Jeong-Won Yoon ◽  
Soyoung Bae ◽  
Byung-Suk Lee ◽  
Seung-Boo Jung
Keyword(s):  
High Temperature ◽  
Ceramic Substrate ◽  
Power Device ◽  
Temperature Applications

Design-development of a variable load tension—compression creep testing machine

1986 ◽  
Vol 21 (1) ◽  
pp. 25-31
Author(s):  
C J Morrison ◽  
D R Hayhurst
Keyword(s):  
High Temperature ◽  
Testing Machine ◽  
High Accuracy ◽  
Gauge Length ◽  
Ball Screw ◽  
Variable Load ◽  
High Temperature Creep ◽  
Design Development ◽  
Dead Weight ◽  
Compression Creep

The design and development is described of a variable load tension-compression creep machine (±50 kN) which overcomes the disadvantages of servo-hydraulic and recirculating ball screw testing machines. The use of dead weight levers to apply specimen loads ensures the achievement of low running costs. Screwed end specimens are used with a 25.40 mm parallel sided gauge length and a diameter of 12.70 mm. It is shown that, provided modest rates of loading (0.4 kN/s) are used, high accuracy ‘through zero’ loadings can be achieved. The machine has been shown to operate satisfactorily for long periods under tension-compression high temperature creep.

Thin-Wall Bulk High Temperature Superconductor as a Permanent Cryomagnet

2012 ◽  
Vol 22 (3) ◽  
pp. 6800304-6800304 ◽  
Author(s):  
X. Chaud ◽  
D. Kenfaui ◽  
E. Louradour ◽  
J. G. Noudem
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Thin Wall

Factors Affecting the Extensional Flow of Crowded Suspensions for the Manufacture of thin Wall Ceramic Bodies

1992 ◽  
Vol 289 ◽  
Author(s):  
James Greener ◽  
Julian R.G. Evans
Keyword(s):  
Extensional Flow ◽  
Thin Wall ◽  
Flow Measurements ◽  
Factors Affecting ◽  
Particulate Suspensions ◽  
Vacuum Forming ◽  
Ceramic Components ◽  
Plastic Forming ◽  
Wall Ceramic ◽  
Ceramic Suspensions

AbstractProcedures for the manufacture of thin wall ceramic components from particulate suspensions using plastic forming methods which employ extensional flows are described. These include vacuum forming, blow moulding and film blowing. In order to understand how to select materials and to adjust the composition of such suspensions, the factors which control suspension rheology are identified. The measurement of extensional viscosity of ceramic suspensions is reported and compared with shear flow measurements.

scholarly journals Method Development for High Temperature In-Situ Neutron Diffraction Measurements of Glass Crystallization on Cooling from Melt

MRS Advances ◽  
2019 ◽  
Vol 4 (17-18) ◽  
pp. 1009-1019 ◽  
Author(s):  
John McCloy ◽  
José Marcial ◽  
Brian Riley ◽  
Jörg Neuefeind ◽  
Jarrod Crum ◽  
...  
Keyword(s):  
High Temperature ◽  
Neutron Diffraction ◽  
High Temperatures ◽  
Method Development ◽  
Temperature Measurements ◽  
Waste Form ◽  
Thin Wall ◽  
Platinum Single Crystal ◽  
In Situ Neutron Diffraction

AbstractA glass-ceramic borosilicate waste form is being considered for immobilization of waste streams of alkali, alkaline-earth, lanthanide, and transition metals generated by transuranic extraction for reprocessing used nuclear fuel. Waste forms are created by partial crystallization on cooling, primarily of oxyapatite and powellite phases. In-situ neutron diffraction experiments were performed to obtain detailed information about crystallization upon cooling from 1200°C. The combination of high temperatures and reactivity of borosilicate glass with typical containers used in neutron experiments, such as vanadium and niobium, prevented their use here. Therefore, methods using sealed thick-walled silica ampoules were developed for the in-situ studies. Unexpectedly, high neutron absorption, low crystal fraction, and high silica container background made quantification difficult for these high temperature measurements. As a follow-up, proof-of-concept measurements were performed on different potential high-temperature container materials, emphasizing crystalline materials so that residual glass in the waste form sample could be more easily analyzed. Room temperature measurements were conducted with a pre-crystallized sample in ‘ideal’ containers stable at low temperatures (i.e., vanadium and thin-wall silica capillaries) and compared to the same measurements in containers stable at high temperatures (i.e, platinum, single crystal sapphire, and thick-walled silica ampoules). Results suggested that Pt is probably the best choice if suitably sealed to prevent contamination from the sample after neutron activation.

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