scholarly journals Ceramics Coating on Metal Surfaces by Hot Isostatic Pressing Method

1988 ◽  
Vol 96 (1115) ◽  
pp. 736-743 ◽  
Author(s):  
Kiichiro KAMATA ◽  
Hiroshi FUKUNAGA ◽  
Noriyuki HAYASHI ◽  
Isao TANABE ◽  
Kozo ISHIZAKI
Keyword(s):  
Metal Surfaces ◽  
Hot Isostatic Pressing ◽  
Pressing Method ◽  
Isostatic Pressing

High-Temperature Buckling Analysis of Titanium Cans Under External Pressure

1999 ◽  
Vol 121 (4) ◽  
pp. 364-368
Author(s):  
V. Koundy ◽  
C. Thiebaut
Keyword(s):  
Hot Isostatic Pressing ◽  
Shell Element ◽  
Element Model ◽  
External Pressure ◽  
Buckling Mode ◽  
Pressing Method ◽  
Isostatic Pressing ◽  
Powder Consolidation ◽  
Rupture Area ◽  
Numerical Finite Element

Powder metallurgy techniques are often used in the fabrication of finished and semi-finished articles. At the CEA, a cold followed by a hot isostatic pressing method is used to produce solid forms from various types of powder. Occasionally, during the hot isostatic pressing part of the process, buckling of the titanium envelope near to the sealed end leads to fracture of the can and incomplete powder consolidation. The aim of this paper is to investigate by numerical finite element simulation the fracture process. A 2-D shell element model with Fourier series taking into account plastic deformation of the can material has been considered and used to determine the buckling critical pressure and the corresponding buckling mode. The simulation has been used to eliminate failure of the can by modifying the temperature-pressure schedule or by changing the can design. The calculations show that reducing the sharp angles of the initial titanium can near the rupture area can resolve the buckling problem; however, this solution is not totally satisfactory due to the development of a zone of constriction (breaks and irregularities) in the compacted powder just behind the modified can wall. This geometrical defect leads to difficulties in machining the final product. A better solution to the problem is to increase the initial can temperature prior to application of the pressure. This leads to a can of enhanced ductility with a better ability to deform. This latter solution, which can be employed with or without can modifications, eliminates both the can’s buckling and the zone of constriction. These numerical results have been validated by recent tests performed in our laboratories.

Effect of hot isostatic pressing method to enhance quality of tin powder

2020 ◽  
Author(s):  
Abdul Basyir ◽  
Agus Sukarto Wismogroho ◽  
Didik Aryanto ◽  
Wahyu Bambang Widayatno
Keyword(s):  
Hot Isostatic Pressing ◽  
Pressing Method ◽  
Isostatic Pressing

Fabrication of AlN-SiC-TiB2 Ceramics by Self-Propagating High Temperature Synthesis and Hot Isostatic Pressing

2007 ◽  
Vol 546-549 ◽  
pp. 1505-1508 ◽  
Author(s):  
Li Juan Zhou ◽  
Yong Ting Zheng ◽  
Shan Yi Du ◽  
Hong Bo Li
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Combustion Product ◽  
Bending Strength ◽  
Hot Isostatic Pressing ◽  
Temperature Synthesis ◽  
Powder Mixtures ◽  
Pressing Method ◽  
Isostatic Pressing ◽  
High Temperature Synthesis

The fabrication of AlN-SiC-TiB2 ceramics with powder mixtures of Al, 6H-SiC and TiB2 was investigated by self-propagating high temperature synthesis (SHS) and hot isostatic pressing (HIP). The powder mixtures were shaped by isostatic cool pressing method and the combustion reaction was carried at the pressure of 100-200 MPa N2 by an ignitor. The compositions and morphologies of the combustion product were studied by XRD and SEM. The determined bending strength and the fracture toughness of the ceramics were 350 MPa and 3.5 MPa⋅m1/2 respectively.

scholarly journals Diffusion Bonding of Si/Graphite and Si/Diamond by Hot Isostatic Pressing Method

2006 ◽  
Vol 47 (540) ◽  
pp. 37-43
Author(s):  
Jun TANABE ◽  
Takeshi SASAKI ◽  
Shigeo SATO ◽  
Masao MURAKAWA
Keyword(s):  
Diffusion Bonding ◽  
Hot Isostatic Pressing ◽  
Pressing Method ◽  
Isostatic Pressing
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