Qiuliang Li

Effect of Slurry Thickness on the Quality of Aluminized Coatings

Zhuoyue Li, Cheng Wang, Xiangyu Ding, Xin Li et autres

Diffusion aluminum coating is crucial to protect aero-engine turbine blades from high-temperature oxidation. Slurry aluminizing, as a commonly-used coating preparation technology, has variations in the process parameters that directly affect the quality of the coating. Therefore, this paper investigates the effect of …

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Comparative Study on the Surface Remelting of Mo-Si-B Alloys with Laser and Electron Beam

Qiuliang Li, Cheng Wang, Zhuoyue Li, Yi Qu et autres

The Mo-12Si-8.5B alloy was surface-remelted by laser and electron beam, and the microstructure of its melt pool and substrate regions were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy spectrometry (EDS) techniques. It was found that the composition of …

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A low power broadband LC-VCO using high quality-factor multi-path stacked inductors in 14-nm FinFET

Libo Zheng, Qiuliang Li, Haowei Xie, Yufeng Guo et autres

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Study on the Pre-Oxidation and Resulting Oxidation Mechanism and Kinetics of Mo-9Si-8B Alloy

Cheng Wang, Qiuliang Li, Zhenping Guo, Xiangrong Li et autres

Molybdenum silicon boron alloy is regarded as the next generation of superalloy that is expected to replace nickel-based superalloys. However, the high-temperature oxidation resistance of Mo-Si-B alloy has always been an issue worth studying. In this study, Mo-9Si-8B alloy was prepared via …

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A tunable low noise high PSRR high accuracy bandgap reference using stacked-long cascode technique in 14 nm FinFET process

Qiuliang Li, Lei Wu, Ran Liu, Yi Liu

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Contrastive Studies between Laser Repairing and Plasma Arc Repairing on Single-Crystal Ni-Based Superalloy

Cheng Wang, Qiuliang Li, Xin Zhou, Wenxin Zhu et autres

Laser repairing and plasma arc repairing experiments on the single-crystal Ni-based superalloy DD407(Ni-7.82Cr-5.34Co-2.25Mo-4.88W-6.02Al-1.94Ti-3.49Ta in wt.%) were carried out in this paper, and the differences in microstructures and mechanical properties varying with depth between the two repairing methods were studied. Comparing the two …

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Air Target Threat Assessment Based on Improved Moth Flame Optimization‐Gray Neural Network Model

Longfei Yue, Rennong Yang, Jialiang Zuo, Hao Luo et autres

Air target threat assessment is a key issue in air defense operations. Aiming at the shortcomings of traditional threat assessment methods, such as one‐sided, subjective, and low‐accuracy, a new method of air target threat assessment based on gray neural network model (GNNM) …

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Ultra low loss and high linearity RF switch using 130nm SOI CMOS process

Hongwei Zhu, Qiuliang Li, Hao Sun, Zhipeng Wang et autres

Ultra low insertion loss and high linearity RF switch is designed and implemented using 130nm RF SOI CMOS process. The FOM of Ron"Coff is touching 115fs and trending below of it. Measurement results demonstrate a low harmonic distortion single-pole double-throw (SPDT) symmetry …

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