Weili Wu^*, Fengyu Chen

Journal of Renewable Materials, Vol.8, No.8, pp. 905-913, 2020, DOI:10.32604/jrm.2020.010558

Abstract Corn stalk cellulose (CS)/used rubber powder (RP) composites were prepared by mixing, the silane coupling agent 3-Mercaptopropyl trimethoxysilane (KH590), r-Aminopropyltrieth oxysilane (KH550), isopropyl dioleic (dioctylphosphate) titanate (HY101) and bis-(γ-triethoxysilylpropyl)- tetrasulfide (Si69) were used to modify the interface of composites. The effects of the CS and coupling agents on the mechanical properties, thermal properties, interfacial morphology and structure of the composites were investigated, respectively. The results showed that the addition of CS could effectively improve the mechanical properties of the composites. Compared with the untreated composites, the interfacial bonding between CS and RP was significantly improved More >

Yu Niu, Feng Xu^*, Xiaofang Hu, Yongcun Li, Hongyan Qu, Jing Zhao, Zhong Zhang

The International Conference on Computational & Experimental Engineering and Sciences, Vol.18, No.2, pp. 53-54, 2011, DOI:10.3970/icces.2011.018.053

Abstract In this work, the influence of the second phase fine powders on solid state sintering process was in situ investigated by synchrotron radiation X-ray computed tomography (SR-CT) technique. Microstructure evolution of the pure SiO2 powders and SiO2 powders mixed with Si3N4 fine powders during sintering is observed respectively from the SR-CT reconstructed images.
Sintering process, as the final and the most crucial step for the preparation of various ceramic materials, will inevitably affect the microstructure and properties of the material. The inclusions with different kinds or particle size may promote or hinder the sintering process. Mixed… More >

Liliane Cruz Gomes de Souza Santos^1*, Eliane Ayres², Flávio Renato de Góes Padula¹

Journal of Renewable Materials, Vol.5, No.3-4, pp. 307-312, 2017, DOI:10.7569/JRM.2017.634121

Abstract In this study, bamboo powder and/or hollow glass microspheres were added to thermoplastic cassava starch in order to overcome its drawbacks. The composites were characterized by scanning electron microscopy (SEM), tensile testing, water contact angle measurement and X-ray diffractometry (XRD), in addition to their thermal properties. The mechanical strength of the composites showed a general decline with increasing bamboo powder content while the water contact angles increased up to 15% of bamboo powder content (% w/w dry starch). The addition of hollow glass microspheres provides an optimal balance between hydrophobicity and mechanical strength. The results More >

B. Srivathsa¹, N. Ramakrishnan²

CMC-Computers, Materials & Continua, Vol.7, No.1, pp. 9-24, 2008, DOI:10.3970/cmc.2008.007.009

Abstract An analytical model, describing an explosive compaction process performed axially on a powder assembly of cylindrical geometry, is discussed. The powder is encapsulated in a cylindrical metal container surrounded by an explosive pad, which is detonated parallel to the major axis of the compact. The pressure generated in the powder is a function of the nature and the thickness of the explosive material as well as the powder characteristics. The model is based on the principle of shock propagation in powder aggregate and, the detonation as well as the refraction wave characteristics of the explosives.… More >