Influence of hollow carbon microspheres of micro and nano-scale on the physical and mechanical properties of epoxy syntactic foams

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 50919-50928 ◽  
Author(s):  
Xiudi Li ◽  
Ming Zhu ◽  
Xuemei Tang ◽  
Qingjie Zhang ◽  
Xiaoping Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Physical And Mechanical Properties ◽  
Syntactic Foams ◽  
Carbon Microspheres ◽  
Interfacial Interactions ◽  
Nano Scale ◽  
Hollow Carbon ◽  
Different Content ◽  
Hollow Carbon Microspheres

The introduction of hollow carbon microspheres at different content and particle size led to various impacts on the physical and mechanical properties of epoxy syntactic foams due to the diversity in the interfacial interactions and microstructure.

Influence of particle size and interfacial interactions on the physical and mechanical properties of particle-filled myofibrillar protein gels

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 60723-60735 ◽  
Author(s):  
Andrew J. Gravelle ◽  
Shai Barbut ◽  
Alejandro G. Marangoni
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Elastic Moduli ◽  
Physical And Mechanical Properties ◽  
Surface Effects ◽  
Myofibrillar Protein ◽  
Interfacial Interactions ◽  
Filler Size ◽  
Protein Gels

The mechanical properties of glass and wax particle-filled myofibrillar protein gels were characterized based on filler size and surface effects. Increases in elastic moduli were explained using established models describing particle-filled networks.

Mussel-Inspired Polydopamine Coated Hollow Carbon Microspheres, a Novel Versatile Filler for Fabrication of High Performance Syntactic Foams

2014 ◽  
Vol 6 (21) ◽  
pp. 18644-18652 ◽  
Author(s):  
Liying Zhang ◽  
Sunanda Roy ◽  
Ye Chen ◽  
Eng Kee Chua ◽  
Kye Yak See ◽  
...  
Keyword(s):  
High Performance ◽  
Syntactic Foams ◽  
Carbon Microspheres ◽  
Hollow Carbon ◽  
Hollow Carbon Microspheres

scholarly journals Effect of Particle Size Distribution on Laser Powder Bed Fusion Manufacturability of Copper

2021 ◽  
Author(s):  
Massimiliano Bonesso ◽  
Pietro Rebesan ◽  
Claudio Gennari ◽  
Simone Mancin ◽  
Razvan Dima ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Physical And Mechanical Properties ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Cooling Channels ◽  
Scan Speed

AbstractOne of the major benefits of the Laser Powder Bed Fusion (LPBF) technology is the possibility of fabrication of complex geometries and features in only one-step of production. In the case of heat exchangers in particular, this is very convenient for the fabrication of conformal cooling channels which can improve the performance of the heat transfer capability. Yet, obtaining dense copper parts printed via LPBF presents two major problems: the high reflectivity of 1 μm (the wavelength of commonly used laser sources) and the high thermal conductivity of copper that limits the maximum local temperature that can be attained. This leads to the formation of porous parts.In this contribution, the influence of the particle size distribution of the powder on the physical and mechanical properties of parts produced via LPBF is studied. Three copper powders lots with different particle size distributions are used in this study. The effect on densification from two laser scan parameters (scan speed and hatching distance) and the influence of contours scans on the lateral surface roughness is reported. Subsequently, samples manufactured with the optimal process parameters are tested for thermal and mechanical properties evaluation.

Hollow carbon microspheres prepared from polystyrene microbeads

Carbon ◽  
2006 ◽  
Vol 44 (3) ◽  
pp. 596-599 ◽  
Author(s):  
Lichao Li ◽  
Huaihe Song ◽  
Xiaohong Chen
Keyword(s):  
Carbon Microspheres ◽  
Hollow Carbon ◽  
Hollow Carbon Microspheres

Experimental Study on the Effects of Internal Erosion on the Physical and Mechanical Properties of Tailings Under Unsteady Seepage

2021 ◽  
Author(s):  
Rong Gui ◽  
Guicheng He
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Shear Strength ◽  
Average Particle Size ◽  
Physical And Mechanical Properties ◽  
Internal Erosion ◽  
Average Particle ◽  
Sand Column ◽  
Sedimentary Characteristics ◽  
Seepage Erosion

Abstract In this paper, the hydraulic sedimentary model was established to investigate the effects of dry beach slope on the sedimentary characteristics of tailings, and the sand column model was built to investigate the effects of seepage erosion on the physical and mechanical properties of sedimentary tailings under unsteady seepage.The results show that the slope of dry beach have a great effect on the sedimentary characteristics of tailings, the average particle size of tailings decreases along the slope of dry beach, and the larger the slope, the more obvious the stratification of the tailings. The migration of fine-grained tailings caused by seepage erosion increases the permeability of the tailings and reduces the shear strength of the tailings. After seepage erosion,the average particle size of 1#tailings sample, 2#tailings sample and 3#tailings sample increased by 6.4%, 12.0% and 2.4% respectively, the hydraulic conductivity of 1# tailings sample, 2# tailings sample and 3# tailings increased by 27.2%,17.9%, and 15.3% respectively after internal erosion, and the shear strength of 1#tailings sample, 2#tailings sample and 3#tailings sample tailings sample decreased by 20.9 %, 15.1% and 12.4% respectively.

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