Fracture Strength Variability of Silicon Nitride Ceramics Made by Powder Compaction

2012 ◽  
pp. 151-157
Author(s):  
Makio Naito ◽  
Hiroya Abe ◽  
Tadashi Horta ◽  
Nobuhiro Shinohara ◽  
Keizo Uematsu
Keyword(s):  
Silicon Nitride ◽  
Fracture Strength ◽  
Powder Compaction ◽  
Nitride Ceramics ◽  
Strength Variability

scholarly journals Effect of Sulfuric Acid Solution on Fracture Strength of Silicon Nitride Ceramics/Nickel Joints.

2000 ◽  
Vol 108 (1257) ◽  
pp. 510-514 ◽  
Author(s):  
Toshiyuki TAKASHIMA ◽  
Keisuke NAKAYAMA ◽  
Tsuyoshi YAMAMOTO ◽  
Toshio NARITA
Keyword(s):  
Sulfuric Acid ◽  
Silicon Nitride ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Fracture Strength ◽  
Nitride Ceramics

Microstructure and fracture strength of silicon nitride ceramics consolidated by oscillatory pressure sintering

2019 ◽  
Vol 45 (12) ◽  
pp. 15671-15675 ◽  
Author(s):  
Shuang Li ◽  
Chuncheng Wei ◽  
Lijuan Zhou ◽  
Peng Wang ◽  
Weiwei Wang
Keyword(s):  
Silicon Nitride ◽  
Fracture Strength ◽  
Nitride Ceramics ◽  
Oscillatory Pressure

Origin of strength variation of silicon nitride ceramics with CIP condition in a powder compaction process

2001 ◽  
Vol 119 (2-3) ◽  
pp. 194-200 ◽  
Author(s):  
Hiroya Abe ◽  
Tadashi Hotta ◽  
Makio Naito ◽  
Nobuhiro Shinohara ◽  
Masataro Okumiya ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Powder Compaction ◽  
Compaction Process ◽  
Strength Variation ◽  
Nitride Ceramics

Effect of dewaxing procedures of cold isostatically pressed silicon nitride ceramics on its microstructure and fracture strength

2003 ◽  
Vol 14 (5) ◽  
pp. 505-517 ◽  
Author(s):  
Tadashi Hotta ◽  
Hiroya Abe ◽  
Takehisa Fukui ◽  
Makio Naito ◽  
Nobuhiro Shinohara ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Fracture Strength ◽  
Nitride Ceramics

Microstructure evolution and mechanical strength of silicon nitride ceramics

1994 ◽  
Vol 9 (5) ◽  
pp. 1208-1213 ◽  
Author(s):  
Y. Iwamoto ◽  
H. Nomura ◽  
I. Sugiura ◽  
J. Tsubaki ◽  
H. Takahashi ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Microstructure Evolution ◽  
Fracture Strength ◽  
Weibull Modulus ◽  
Sintering Process ◽  
Drying Process ◽  
Immersion Liquid ◽  
Compaction Process ◽  
Fracture Origin ◽  
Nitride Ceramics

Microstructure evolution was studied in silicon nitride ceramics by a novel characterization method, and its relevance to the strength was discussed. The characterization method involves an immersion liquid for making green and partially sintered bodies transparent, and a subsequent direct optical microscopic examination. Granules for compaction process were prepared with the spray-drying process and were found to contain pores or deep dimples. Green bodies formed by CIP with these granules contain regularly arrayed pores at the center of granules and also crack-like voids at the boundaries of granules. These pores were preserved in the sintering process and resulted in large pores in the sintered body. They behave as fracture origin in ceramics and reduce the fracture strength. The Weibull modulus was high due to the presence of uniformly distributed pores.

Relevance of internal structures to the fracture strength of injection-molded and sintered silicon nitride ceramics

2005 ◽  
Vol 16 (5) ◽  
pp. 425-434 ◽  
Author(s):  
Nobuhiro Shinohara ◽  
Shigeru Ohsaka ◽  
Tadashi Hotta ◽  
Hiroya Abe ◽  
Makio Makio ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Fracture Strength ◽  
Internal Structures ◽  
Nitride Ceramics ◽  
Injection Molded ◽  
Sintered Silicon
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