The room temperature fracture strength of sintered UO2 rings containing deliberately introduced impurities

1976 ◽  
Vol 11 (4) ◽  
pp. 767-775 ◽  
Author(s):  
J. B. Ainscough ◽  
P. F. Messer
Keyword(s):  
Fracture Strength ◽  
Room Temperature ◽  
Temperature Fracture

Dependence of room temperature fracture strength on strain-rate in sapphire

1973 ◽  
Vol 8 (11) ◽  
pp. 1595-1602 ◽  
Author(s):  
J. T. A. Pollock ◽  
G. F. Hurley
Keyword(s):  
Strain Rate ◽  
Fracture Strength ◽  
Room Temperature ◽  
Temperature Fracture

scholarly journals Effect of Microstructural Continuity on Room-Temperature Fracture Toughness of ZrC-Added Mo–Si–B Alloys

2018 ◽  
Vol 59 (4) ◽  
pp. 518-527 ◽  
Author(s):  
Shunichi Nakayama ◽  
Nobuaki Sekido ◽  
Sojiro Uemura ◽  
Sadahiro Tsurekawa ◽  
Kyosuke Yoshimi
Keyword(s):  
Fracture Toughness ◽  
Room Temperature ◽  
Temperature Fracture

Room temperature fracture of FeAl and NiAl

1991 ◽  
Vol 27 (3) ◽  
pp. 167-173 ◽  
Author(s):  
P. Nagpal ◽  
I. Baker
Keyword(s):  
Room Temperature ◽  
Temperature Fracture

Analyses of Eutectoid Phase Transformations in Nb–SilicideIn SituComposites

2004 ◽  
Vol 10 (4) ◽  
pp. 470-480 ◽  
Author(s):  
B.P. Bewlay ◽  
S.D. Sitzman ◽  
L.N. Brewer ◽  
M.R. Jackson
Keyword(s):  
Crystal Structure ◽  
Phase Transformation ◽  
High Temperature ◽  
Room Temperature ◽  
Bulk Composition ◽  
High Strength ◽  
Eutectoid Decomposition ◽  
Quaternary Alloys ◽  
Temperature Fracture

Nb–silicide in situ composites have great potential for high-temperature turbine applications. Nb–silicide composites consist of a ductile Nb-based solid solution together with high-strength silicides, such as Nb5Si3and Nb3Si. With the appropriate addition of alloying elements, such as Ti, Hf, Cr, and Al, it is possible to achieve a promising balance of room-temperature fracture toughness, high-temperature creep performance, and oxidation resistance. In Nb–silicide composites generated from metal-rich binary Nb-Si alloys, Nb3Si is unstable and experiences eutectoid decomposition to Nb and Nb5Si3. At high Ti concentrations, Nb3Si is stabilized to room temperature, and the eutectoid decomposition is suppressed. However, the effect of both Ti and Hf additions in quaternary alloys has not been investigated previously. The present article describes the discovery of a low-temperature eutectoid phase transformation during which (Nb)3Si decomposes into (Nb) and (Nb)5Si3, where the (Nb)5Si3possesses the hP16 crystal structure, as opposed to the tI32 crystal structure observed in binary Nb5Si3. The Ti and Hf concentrations were adjusted over the ranges of 21 to 33 (at.%) and 7.5 to 33 (at.%) to understand the effect of bulk composition on the phases present and the eutectoid phase transformation.

Development of Toughened, Fine Grained, Recrystallized W-1.1%TiC

2021 ◽  
Vol 1024 ◽  
pp. 103-109
Author(s):  
Shunsuke Makimura ◽  
Hiroaki Kurishita ◽  
Koichi Niikura ◽  
Hun Chea Jung ◽  
Hiroyuki Ishizaki ◽  
...  
Keyword(s):  
Melting Point ◽  
Low Temperature ◽  
Fracture Strength ◽  
Room Temperature ◽  
Target Material ◽  
High Density ◽  
High Melting ◽  
High Melting Point ◽  
Irradiation Embrittlement ◽  
Fine Grained

Tungsten (W) is a principal candidate as target material because of its high density and extremely high melting point. W inherently has a critical disadvantage of its brittleness at around room temperature (low temperature brittleness), recrystallization embrittlement, and irradiation embrittlement. TFGR (Toughened, Fine Grained, Recrystallized) W-1.1%TiC has been considered as a realized solution to the embrittlement problems. We started to fabricate TFGR W-1.1%TiC in 2016 under collaboration between KEK and Metal Technology Co. LTD (MTC). The TFGR W-1.1%TiC samples were successfully fabricated in June, 2018. As a result, the specimen showed slight bend ductility and 2.6 GPa of fracture strength.

71. The room temperature fracture of polycrystalline graphites

Carbon ◽  
1973 ◽  
Vol 11 (6) ◽  
pp. 679 ◽  
Author(s):  
C.A Anderson ◽  
E.I Salkovitz
Keyword(s):  
Room Temperature ◽  
Temperature Fracture

Effect of multiaxial stresses on the fracture strength of silicon carbide

1969 ◽  
Vol 4 (2) ◽  
pp. 81-87 ◽  
Author(s):  
E K Priddle
Keyword(s):  
Silicon Carbide ◽  
Fracture Strength ◽  
Room Temperature ◽  
Fracture Behaviour ◽  
Axial Tension ◽  
Straight Line ◽  
Failure Envelopes ◽  
Tension And Compression ◽  
Failure Theories ◽  
Tubular Specimens

This work describes the fracture behaviour of silicon-carbide tubular specimens under multi-axial stresses at room temperature. A method of obtaining combinations of stresses in the form of torsion, hoop, axial tension, and compression is described and failure envelopes for silicon carbide are included from the data obtained. Failure theories are reviewed and the results from the work show that the available theories are inadequate to describe both the tension-tension and tension-compression quadrants. For practical purposes a straight-line relation can be used joining axial and hoop tensile strengths and the axial compression strength.

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