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| 1 | Ductile Phase Toughened Brittle Materials显示文摘Toughening of brittle materials by the inclusion of ductile phases is governed by several important factors which include ceramic-ductile phase interfacial bond strength, physical and chemical compatibility between ceramic and ductile phase, geometry and mechanical properties of ductile phase. The present understanding of the effect of these factors on toughening is reviewed and clarified. Continuous ductile phases (network, fibre or plate) are found to be more efficient for the toughening of brittle materials than discrete ductile particles. However, ductile particle toughened brittle materials have the advantages of material homogeneity isotropy and particularly better high temperature properties. It has been demonstrated that the influence of interfacial bond strength is determined by the geometry of the ductile phase in the composites. For the comparatively continuous ductile phase, such as ductile network, fibre or plate, comparatively weak inteffocial bond strength can promote partial debonding of the brittle matrix-ductile phase intedece during crack propagation and is beneficial for toughening. For discrete particulate ductile phase toughened brittle materials, the small gauge length of the ductile phase often results in the ductile phase pull-out during crack propagation which is the main limitation to toughening.Thus strong bond strength is required to ensure the bridging of the crack by the ductile phase.The coefficient of thermal expansion (CTE) mismatch between matrix and ductile phase has also been correlated with the geometry of the ductile phase. In most of the ceramic/metal systems,the CTE of the ductile metal phase is greater than that of the ceramic matrix. In the case of ductile network, fibre or plate, the residual stress created by the CTE mismatch can contribute to toughening through its influence on the initial crack opening stress while the bridging of the crack by the ductile phase is still ensured. However, for discrete ductile particles, the residual stress created by CTE mismatch is liable to cause cracks to by-pass the spherical particles, limiting the efficient use of the inherent toughness of the ductile phase. Low-modulus ductile inclusions are beneficial for the bridging of cracks by the ductile phase. Softer, more ductile inclusions are more effective for the toughening of brittle materials by particulate ductile | Sun, XD Yeomans, JA | 1996 | Journal of Materials Science & Technology1996，12，2： | 3 |
| 2 | Factors Predictive of Adverse Events Following Endoscopic Papillary Large Balloon Dilation: Results from a Multicenter Series显示文摘 | Soo Jung Park Jin Hong Kim Jae Chul Hwang Ho Gak Kim Don Haeng Lee Seok Jeong Sang-Woo Cha Young Deok Cho Hong Ja Kim Jong Hyeok Kim Jong Ho Moon Sang-Heum Park Takao Itoi Hiroyuki Isayama Hirofumi Kogure Se Joon Lee Kyo Tae Jung Hye Sun Lee Todd H. Baron | 2013 | Digestive Diseases and Sciences2013，，4： | 2 |
| 3 | Hypoxic-ischemic brain injuryinduces an acute microglial reaction in perinatal rats显示文摘 | Ivacko JA Sun R Silverstein FS | 1996 | Pediatr Res1996，39，： | 1 |
| 4 | Increased risk of cancer forpatients with ankylosing spondylitis : a nationwide population-basedretrospective cohort study 显示文摘 | Sun LM Muo CH Liang JA | 2014 | Scand J Rheumatol2014，43，4： | 1 |
| 5 | A novel eight amino acid insertion conlributes to the hemagglutinin cleavahility and the vinlen(e of a highly pathogenic avian influenza A (H7N3) virus in mice显示文摘 | Sun X Belser JA Tumpey TM | 2015 | Vi- rology2015，488，1： | 1 |
| 6 | Opioids protect against substantia nigra cell degeneration under conditions of iron deprivation: a mechanism of possible relevance to the Restless Legs Syndrome (RLS) and Parkinson'S disease 显示文摘 | Sun YM Hoang T Neubauer JA | 2011 | J Neural Sei2011，304，12： | 1 |
| 7 | Complexity in the Genetic Architecture of Leukoaraiosis in Hypertensive Sibships from the GENOA Study显示文摘 | Smith JA Turner ST Sun YV | 2009 | BMC Med Genomics2009，2，1： | 1 |
| 8 | Uterine deletion of Gpl30 or Stat3 shows implantation failure with increased estrogenic responses显示文摘 | Sun X Bartos A Whitsett JA | 2013 | Mol Endocrinol2013，27，9： | 1 |
| 9 | Small intestine laminapropria dendritic cells promote de novo generation ofFOXP3 Treg cells via retinoic acid显示文摘 | Sun CM Hall JA Blank RB | 2007 | J Exp Med2007，204，8： | 1 |
| 10 | Effect of Nutrient Intake and Helicobacter pylori Infection on Gastric Cancer in Korea: A Case-Control Study显示文摘 | Hyun Ja Kim Mi Kyung Kim Woong Ki Chang Ho Soon Choi Bo Youl Choi Sang Sun Lee | 2005 | Nutrition and Cancer2005，，2： | 1 |
| 11 | Hypoxic-ischemia injury induce s an acute microglial reaction in perinatal rats显示文摘 | Ivacko JA Sun R Silverstein FS | 1996 | Pediatr Res1996，39，1： | 1 |
| 12 | Effect of AQP1 expression level on Co(2) permeability in bovine corneal endothelium显示文摘 | Sun XC Allen KT Xie Q Stamer WD Bonanno JA | 2001 | Invest Ophthalmol Vis Sci2001，42，2： | 1 |
| 13 | Hypoxic-ischemic braininjury induces an acute microglial reaction in perinatal rats显示文摘 | Ivacko JA Sun R Silverstein FS | 1996 | Pediatr Res1996，39，1： | 1 |
| 14 | A study of glucose tolerance and insulin response in partially depancreatized dogs显示文摘 | Sun AM Coddling JA Haist RE | 1974 | Diabetes1974，23，5： | 1 |
| 15 | Commensal DNA limitsregulatory T ceil conversion and is a natural adjuvant of intesti- nal immune responses显示文摘 | Hall JA Bouladoux N Sun CM | 2008 | Immunity2008，29，4： | 1 |
| 16 | Concentration and fate of histatins and acidic proline-rich proteins in the oral environment 显示文摘 | Campese M Sun X Bosch JA | 2009 | Arch Oral Biol2009，54，4： | 1 |
| 17 | Dynamic tensile deformation and fracture of metal cylinders at high strain rates 显示文摘 | SIGH M SUN BOLA M S | 2002 | Int J Impact Eng2002，27，9： | 1 |
| 18 | Comparative affects of plasmid-encoded interleukin-12 and interleukin 18 on the protective efficacy of DNA vaccination against Mycobacterium tuberculosis 显示文摘 | Triccas JA Sun L Palendira U | 2002 | Immunol Cell Biol2002，80，4： | 1 |
| 19 | Opioids protect against substantia nigra ceil degeneration under conditions of iron depri- vation:a mechanism of possible relevance to the Restless Legs Syndrome(RLS)and Parkinson's disease显示文摘 | Sun YM Hoang T Neubauer JA | 2011 | J Neurol Sci2011，304，61： | 1 |
| 20 | Inhibition of vascular smooth muscle cell migration by cytochrome P450 epoxygenase-derived eicosanoids显示文摘 | Sun J Sui X Bradbury JA | 2002 | Circ Res2002，90，9： | 1 |
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