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Your search keyword '"Zehua Lu"' showing total 3 results
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3 results on '"Zehua Lu"'

1. Pushing the Electrochemical Performance Limits of Polypyrrole Toward Stable Microelectronic Devices

Author

Muhammad Tahir, Liang He, Lihong Li, Yawei Cao, Xiaoxia Yu, Zehua Lu, Xiaoqiao Liao, Zeyu Ma, and Yanlin Song

Subjects
Microsupercapacitor, Skin-compatible device, Strain sensor, Flexible electronics, Technology
Abstract

Highlights Optimizing the current collectors with rGO and the addition of CNT in PPy, and the structural pulverization is prevented significantly. Areal capacitances of 65.9 to 70 mF cm−2 are achieved for PPy-CNT@rGO microsupercapacitors (MSCs) with 79% capacitance retention after 10,000 cycles. The MSC-derived capacitive micro-strain sensor is capable of biosignals detection. The micro strain sensor is capable of detecting wide levels of applied strain with short response/recovery time and excellent reliability.

Published
2023
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2. Examination on the wear process of polyformaldehyde gears under dry and lubricated conditions

Author

Guoda Yu, Huaiju Liu, Ken Mao, Caichao Zhu, and Zehua Lu

Subjects
polyformaldehyde gear, lubrication, wear, surface damage, Mechanical engineering and machinery, TJ1-1570
Abstract

Abstract This study presents the results of detailed wear process examination on polyformaldehyde gears under both dry and lubricated conditions. A multi-purpose durability test rig was employed to study the wear performance of polyformaldehyde gear pairs. The wear behaviors of polyformaldehyde gears under dry and oil-lubricated operating conditions were characterized via measurements of gear tooth surface micro-topography and tooth profile deviation. Under the dry running condition, a hump and a gully appear on the tooth surface in the pitch line area of the driving gear and the driven wheel, respectively. The largest amount of wear was observed around the tooth root of the driving gear. However, the gear tooth wear pattern with lubrication is different from that under the dry running condition.

Published
2020
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3. Examination on the wear process of polyformaldehyde gears under dry and lubricated conditions

Author

Huaiju Liu, Caichao Zhu, Guoda Yu, Ken Mao, and Zehua Lu

Subjects
wear, Materials science, Test rig, Wear pattern, 02 engineering and technology, behavioral disciplines and activities, Tooth root, 0203 mechanical engineering, Gear tooth, TJ1-1570, Mechanical engineering and machinery, Composite material, health care economics and organizations, lubrication, Mechanical Engineering, Process (computing), Tooth surface, social sciences, 021001 nanoscience & nanotechnology, surface damage, Durability, Surfaces, Coatings and Films, 020303 mechanical engineering & transports, Lubrication, population characteristics, polyformaldehyde gear, 0210 nano-technology, human activities
Abstract

This study presents the results of detailed wear process examination on polyformaldehyde gears under both dry and lubricated conditions. A multi-purpose durability test rig was employed to study the wear performance of polyformaldehyde gear pairs. The wear behaviors of polyformaldehyde gears under dry and oil-lubricated operating conditions were characterized via measurements of gear tooth surface micro-topography and tooth profile deviation. Under the dry running condition, a hump and a gully appear on the tooth surface in the pitch line area of the driving gear and the driven wheel, respectively. The largest amount of wear was observed around the tooth root of the driving gear. However, the gear tooth wear pattern with lubrication is different from that under the dry running condition.

Published
2020

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