Influence of Particle Size and Phase Connectivity on the Fracture Behavior of PA6/EOR Blends

2019 ◽  
Vol 384 (1) ◽  
pp. 1800173
Author(s):  
Johannes Heyn ◽  
Christian Bonten
Keyword(s):  
Particle Size ◽  
Fracture Behavior ◽  
Phase Connectivity

The Effect of the Second Phase Particle Size on Fracture Behavior of Cu – 0.1% Sn Ultra-Fine-Grained Alloy

2016 ◽  
Vol 59 (1) ◽  
pp. 116-120
Author(s):  
S. N. Faizova ◽  
G. I. Raab ◽  
I. A. Faizov ◽  
D. A. Aksenov ◽  
N. G. Zaripov ◽  
...  
Keyword(s):  
Particle Size ◽  
Fracture Behavior ◽  
Phase Particle ◽  
Second Phase ◽  
Fine Grained

scholarly journals Effect of Rubber Particle Size on Impact Tensile Fracture Behavior of MBS Resin

2007 ◽  
Vol 56 (4) ◽  
pp. 371-376 ◽  
Author(s):  
Kazuo ARAKAWA ◽  
Toshio MADA ◽  
Jun TAKAHASHI ◽  
Mitsugu TODO ◽  
Susumu OOKA
Keyword(s):  
Particle Size ◽  
Fracture Behavior ◽  
Rubber Particle ◽  
Tensile Fracture

Study on Fracture Behaviors of Injection-Molded Bamboo Fiber/PBS Composites

2010 ◽  
Vol 452-453 ◽  
pp. 229-232
Author(s):  
Kazuya Ohkita ◽  
Hitoshi Takagi
Keyword(s):  
Particle Size ◽  
Fracture Behavior ◽  
Bamboo Fiber ◽  
Hot Water ◽  
Impact Tests ◽  
Pull Out ◽  
Digital Microscope ◽  
Polybutylene Succinate ◽  
Injection Molded ◽  
The Impact

Injection-molded bamboo fiber/PBS (polybutylene succinate) composites were studied; especially much attention was focused on their fracture behavior. The effects of filling rate and size of the bamboo fiber (BF) to the resin on fractural behavior were evaluated by tensile and Izod impact tests. The tensile strength of the composites of BF particle size the range from +75 to -180 m and from +180 to -250 m were higher than those of -75 m and those of +250 to -500 m. However, there are many pull-out fibers on fracture surface. The surface of the fiber had no sticking of PBS resin. The impact strength of the composites increased with increasing BF content except for the case that BF particle size was -75 m. After impact tests, in the case of the composites prepared using large BF, the fractural surfaces became bumpy. The changes in shapes of the composites derived from immersion in boiling distilled water were examined by using a digital microscope. After immersion in the hot water, many cracks appeared on the outer surface of the composites. These cracks might be responsible for the brittle fracture behavior of the water-absorbed composites.

Microstructural characterization of laser-melted/roller-quenched dicalcium silicate

1988 ◽  
Vol 46 ◽  
pp. 582-583
Author(s):  
C. J. Chan ◽  
K. R. Venkatachari ◽  
W. M. Kriven ◽  
J. F. Young
Keyword(s):  
Particle Size ◽  
Raw Materials ◽  
Shape Change ◽  
Microstructural Characterization ◽  
Particle Size Effect ◽  
Dicalcium Silicate ◽  
Laser Melting ◽  
Uniform Size ◽  
Cell Shape Change ◽  
Wide Range

Dicalcium silicate (Ca2SiO4) is a major component of Portland cement. It has also been investigated as a potential transformation toughener alternative to zirconia. It has five polymorphs: α, α'H, α'L, β and γ. Of interest is the β-to-γ transformation on cooling at about 490°C. This transformation, accompanied by a 12% volume increase and a 4.6° unit cell shape change, is analogous to the tetragonal-to-monoclinic transformation in zirconia. Due to the processing methods used, previous studies into the particle size effect were limited by a wide range of particle size distribution. In an attempt to obtain a more uniform size, a fast quench rate involving a laser-melting/roller-quenching technique was investigated.The laser-melting/roller-quenching experiment used precompacted bars of stoichiometric γ-Ca2SiO4 powder, which were synthesized from AR grade CaCO3 and SiO2xH2O. The raw materials were mixed by conventional ceramic processing techniques, and sintered at 1450°C. The dusted γ-Ca2SiO4 powder was uniaxially pressed into 0.4 cm x 0.4 cm x 4 cm bars under 34 MPa and cold isostatically pressed under 172 MPa. The γ-Ca2SiO4 bars were melted by a 10 KW-CO2 laser.

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