Determination of dynamic properties or sintered copper powder from ultrasonic measurements by J. LEWANDOWSKI

“…The overall (effective) dynamic properties of sintered copper powder with air-saturated pores at moderate porosities are deduced from suitable ultrasonic measurements carried out at low porosities in the long-wavelength approximation. …”
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Influence of high powder flow dynamics on the efficiency of laser-directed energy deposition by Hong Seok Kim, Sang Hu Park

“…This study visualizes powder flow dynamics using area illumination and high-speed imaging. …”
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The Effect of SLM Spreader Structures on the Powder Spreading Dynamics Mechanism of Diamond Tools by HUANG Guoqin, ZHANG Jiangtao, ZHU Xiaowei, XU Yangli, SUN Long, DU Yulong, ZHANG Yunhe

“…This demonstrated that there was particlessegregation due to the low concentration of diamondparticles close to the front of the powder bed. …”
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Achieving high density and controlled microstructure by predicting hot deformation behavior of low-cost powder metallurgy Ti-5553 alloy by Krystian Zyguła, Oleksandr Lypchanskyi, Kamil Cichocki, Grzegorz Korpała, Marek Wojtaszek, Ulrich Prahl

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Effect of KH-560 and Glass Powder on the Thermal Protection Performance of Silicone Resin Coatings by LUO Yifeng, LIAO Huanyi, JIANG Yaonian, DAI Cuiying, LI Sha, WU Zhiyuan, ZUO Jinglu, ZHANG Wei, MAO Weiguo

“…To further enhance the mechanical properties and service temperature of silicone resin coatings， the effects of the silane coupling agent KH-560 and low melting point glass powder on the thermal protection performance of silicone resin coatings were investigated.The elastic modulus， bonding strength， thermal expansion coefficient， ablation， thermal insulation and thermal shock properties of the coating were tested using a high-temperature solid material dynamic elastic property tester， a universal electronic tensile machine， an expansion meter and a gas thermal shock experimental system； The composition， surface micromorphology and elemental content of the coating were analyzed using infrared spectroscopy， emission scanning electron microscopy， and its attached energy spectrum analysis.Results showed that with increasing KH-560 content (0～3%)， the elastic modulus and adhesion strength of the silicone resin coatings were initially increased and then decreased.When 2.0%KH-560 was added，the maximum values for the elastic modulus and adhesion strength of the coatings were achieved at room temperature， reaching 24.10 GPa and 4.40 MPa， respectively.This was mainly attributed to the enhancement of bonding between the silicone resin and the metal substrate， as well as between the filler and the silicone resin facilitated by KH-560.The addition of 110%glass powder was found to effectively improve the thermal stability and thermal shock resistance of the silicone resin coatings at 800 ℃， due to the melting of glass powder，which filled the voids generated by the decomposition of silicone resin， thereby preventing further oxidation decomposition of the silicone resin.Additionally， silicone resin coatings with a glass powder content of 110%were observed to exhibit good thermal insulation and ablative properties.…”
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Study on freeze-thaw resistance and pore structure deterioration of fly ash reactive powder concrete based on low-field NMR relaxation by Dehong Wang, Hongji Zhang, Pang Chen, Yanzhong Ju, Peng Guo

“…To investigate the effect of fly ash (FA) replacements of cement on the freeze-thaw resistance and microscopic pore structure of reactive powder concrete (RPC), a rapid freeze-thaw test on RPC with different fly ash replacement content was conducted. …”
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Dynamic Mechanical Properties and Constitutive Relation of an Aluminized Polymer Bonded Explosive at Low Temperatures by Yuliang Lin, Binbin Xu, Rong Chen, Jingui Qin, Fangyun Lu

“…Polymer bonded explosives (PBXs) are widely used as energetic fillings in various warheads, which maybe are utilized under extreme environments, such as low or high temperatures. In this paper, the dynamic response of an aluminized polymer bonded explosive was tested at a range of temperatures from −55°C to −2°C and a fixed loading strain rate (~700 s−1) with the split Hopkinson pressure bar (SHPB). …”
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The interaction between dynamic recrystallization and twinning during the hot compression in a novel nickel-based superalloy by Xingyun Fan, Lingxiang Zhong, Yanzhuo Liu, Jianmin Cui, Hongqiang Du, Yongsheng Wei, Yingnan Shi, Xinmei Hou, Jinhui Wang, Peipeng Jin

“…Twinning and dynamic recrystallization (DRX) have been widely reported as important mechanisms for accommodating plastic deformation in nickel-based superalloys. …”
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Influence of melting mode on melt pool dynamics and microstructure in WE43 Mg alloy: A combined computational and experimental approach by Francesco D’Elia, Mohammad Hoseini-Athar, Satya Chaitanya Vaddamanu, Mikael Ersson, Peter Hedström, Cecilia Persson

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Study of beryllium hardening obtained by powder metallurgy by А.В. Ревуцкий, Б.В. Сырнев, О.В. Семилуцкая

“…The dependences of the content and morphology of the hardening phase depending on the content of low-melting impurities on the sintered Beryllium powder grains surface have been studied. …”
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Mechanical response and energy dissipation law of rock-like mass with internal fractures under dynamic load by Lishuai JIANG, Yiming YANG, Yang ZHAO, Haozhe LI, Qi WU, Xiaohan PENG

“…The strength of coal, mudstone, sandstone and other common rocks in the surrounding rock of deep roadway is low and the fractures are developed. Dynamic disasters are prone to occur in the complex mechanical environment of deep roadway. …”
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Effect of waste crab shell powder on matrix asphalt by Han Biao, Xing Yongming, Li Chao, Yan Jingchen, Zhang Xing, Zhang Lingyu

“…In order to solve the problems of depleting petroleum asphalt resources and deteriorating pollution of marine products, a systematic study was carried out on the application prospect of waste crab shell (WS) powder as asphalt modifier. In this study, the physical properties of WS powder modified asphalt (WSA) were tested by blending different contents of WS powder into matrix asphalt; the high and low temperature rheological properties of WS powder modified asphalt were characterized by using Dynamic shear rheometer, Bending beam rheometer, and Multiple stress creep recovery test. …”
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The influence of mineral powders on the resistance of bitumen binder to thermal deformations by M. A. Vysotskaya, V. S. Lesovik, Ya. M. Katrich, D. Yu. Egorov

“…The complex influence of dynamic loads, climatic factors, and aggressive environments is the driver of premature deformation of asphalt concrete pavements. …”
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Influence of the effect of recycled fine aggregate and powder on the frost resistance of recycled concrete by Quan Ma, Wei Yang, Min Song, Zhenhua Duan

“…To verify the feasibility of replacing cementitious materials with recycled fine powder (RFP), cement paste was prepared by substituting RFP for cementitious materials by mass fraction at 0, 10%, 20%, and 30%. …”
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Reusing waste toner powder as functional additives for alkali-activated slag by Jun Ren, Xincheng Huang, Junjie Liu, Jianghong Mao, Chengzhao Liang, Zhaowei Cheng, Haiyan Zhu, Jian Xu, Ziqi Dong, Moray Newlands, Tangwei Mi

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Wall conditioning effects of boron powder injection in KSTAR with a tungsten divertor by Hanna Schamis, Erik P. Gilson, Hyungho Lee, Rajesh Maingi, SangKyeun Kim, Joseph A. Snipes, SeongMoo Yang, Alessandro Bortolon, Juhyeok Jang, Boseong Kim, Dongcheol Seo, Jaein Song, Hyunmyeong Lee, the KSTAR collaboration

“…These results are in qualitative agreement with low- Z injected powder experiments across many fusion devices, confirming the utility of low- Z powder injection as a real-time wall conditioning tool.…”
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In Situ Study of Surface Morphology Formation Mechanism During Laser Powder Bed Fusion by Yuhui Zhang, Hang Ren, Hualin Yan, Yu Long

“…Results indicate that LPBF intermediate layer surfaces are influenced by energy density, melt pool behavior, and previous layer morphology, forming complex topological structures. At a low energy density, insufficient powder melting causes balling, extended by subsequent melt pools to form a reticulated structure and local large-scale protrusions. …”
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Rheological and Environmental Implications of Recycled Concrete Powder as Filler in Concrete 3D Printing by Tiago Canavarro Cavalcante, Romildo Dias Toledo Filho, Oscar Aurelio Mendoza Reales

“…3D printing with concrete has been accounted as a foremost strategy to mitigate low productivity, workforce shortage, and high waste generation in the construction industry. …”
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Research on the Influence of Nanocarbon/Copolymer SBS/Rubber Powder Composite Modification on the Properties of Asphalt and Mixtures by Wenhui Zhao, Xiangbing Xie, Guanghui Li, Jiuguang Geng, Meng Bao, Mingwei Wang

“…In addition, when nanocarbon/copolymer SBS/rubber powder composite-modified asphalt was used, the high-temperature stability and low-temperature cracking resistance of the nanocarbon/copolymer SBS/rubber powder composite-modified asphalt mixture were approximately 1.3 times those of the nanocarbon/rubber powder asphalt mixture. …”
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State of the art review on inorganic powders modified asphalt materials: Reducing the temperature of asphalt pavement by Chaohui Wang, Tonghao Zhang, Anquan Li, Dawei Zhao, Luqing Liu, Qian Chen

“…The high-temperature performance of inorganic powders modified asphalt and its mixture is significantly improved, while there is no significant change in low-temperature performance and water stability. …”
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