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金属研究所 [4]
成都山地灾害与环境研... [1]
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期刊论文 [8]
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Impact dynamics of granular flow on rigid barriers: insights from numerical investigation using material point method
期刊论文
OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2024, 卷号: 21, 期号: 12, 页码: 4083-4111
作者:
Yu, Fangwei
;
Su, Lijun
;
Li, Xinpo
;
Zhao, Yu
  |  
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2025/01/24
Column collapse
Granular flow
Impact force
Material point method
Numerical tests
Rigid barrier
Post-failure analysis of landslide blocking river using the two-phase double-point material point method: a case of western Hubei, China
期刊论文
OAI收割
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2023, 卷号: 82, 期号: 3, 页码: -
作者:
Du, Wenjie
;
Sheng, Qian
;
Fu, Xiaodong
;
Chen, Jian
;
Wei, Pengfei
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2023/08/02
Landslide
Barrier dam
Material point method
Failure analysis
Kinetic evolution
Progress in ceramic materials and structure design toward advanced thermal barrier coatings
期刊论文
OAI收割
Journal of Advanced Ceramics, 2022, 卷号: 11, 期号: 7
作者:
Wei,Zhi-Yuan
;
Meng,Guo-Hui
;
Chen,Lin
;
Li,Guang-Rong
;
Liu,Mei-Jun
  |  
收藏
  |  
浏览/下载:65/0
  |  
提交时间:2022/07/14
thermal barrier coatings (TBCs)
ceramic material
degradation and failure
structure design
long lifetime
Synthesis of non-agglomerating submicron/nano-Yb2Si2O7 powders by a carbon-coated coprecipitation method
期刊论文
OAI收割
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2022, 页码: 7
作者:
Liu, Jingting
;
Luo, Zhixin
;
Yang, Jinxing
;
Oh, Yoonsuk
;
Wu, Zhen
  |  
收藏
  |  
浏览/下载:51/0
  |  
提交时间:2022/07/01
carbon-coated coprecipitation method
environmental barrier coating material
submicron
nano powder
Yb2Si2O7
(La0.2Ce0.2Nd0.2Sm0.2Eu0.2)PO4: A high-entropy rare-earth phosphate monazite ceramic with low thermal conductivity and good compatibility with Al2O3
期刊论文
OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2019, 卷号: 35, 期号: 12, 页码: 2892-2896
作者:
Zhao, Zifan
;
Chen, Heng
;
Xiang, Huimin
;
Dai, Fu-Zhi
;
Wan, Xiaohui
  |  
收藏
  |  
浏览/下载:109/0
  |  
提交时间:2021/02/02
(La0.2Ce0.2Nd0.2Sm0.2Eu0.2)PO4
High-entropy ceramics
Al(2)O(3)f/Al2O3 ceramic matrix composites
Environmental barrier coating materials
Interphase material
Thermal expansion coefficient
Thermal conductivity
Solution synthesis
Rare-earth phosphates
Monazite
(La0.2Ce0.2Nd0.2Sm0.2Eu0.2)PO4: A high-entropy rare-earth phosphate monazite ceramic with low thermal conductivity and good compatibility with Al2O3
期刊论文
OAI收割
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2019, 卷号: 35, 期号: 12, 页码: 2892-2896
作者:
Zhao, Zifan
;
Chen, Heng
;
Xiang, Huimin
;
Dai, Fu-Zhi
;
Wan, Xiaohui
  |  
收藏
  |  
浏览/下载:119/0
  |  
提交时间:2021/02/02
(La0.2Ce0.2Nd0.2Sm0.2Eu0.2)PO4
High-entropy ceramics
Al(2)O(3)f/Al2O3 ceramic matrix composites
Environmental barrier coating materials
Interphase material
Thermal expansion coefficient
Thermal conductivity
Solution synthesis
Rare-earth phosphates
Monazite
Thermal cycling behavior of YSZ and La-2(Zr0.7Ce0.3)(2)O-7 as double-ceramic-layer systems EB-PVD TBCs
期刊论文
OAI收割
journal of alloys and compounds, 2012, 卷号: 525, 页码: 87-96
Xu ZH
;
He LM
;
Mu RD
;
Lu F
;
He SM
;
Cao XQ
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/05/20
PHYSICAL VAPOR-DEPOSITION
YTTRIA-STABILIZED ZIRCONIA
BARRIER-COATING MATERIAL
HOT CORROSION BEHAVIOR
LANTHANUM-CERIUM OXIDE
MICROSTRUCTURE
TRANSFORMATION
CONDUCTIVITY
DELAMINATION
GADOLINIA
Research on AlInGaN Quaternary Alloys as MQW Barriers in GaN-Based Laser Diodes
期刊论文
OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 卷号: 29, 期号: 6, 页码: 1441-1444
作者:
Chen, WH
;
Liao, H
;
Hu, XD
;
Li, R
;
Jia, QJ
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2016/06/29
GaN-based LD
Multi-quantum-well (MQW)
AlInGaN
Barrier material
The spectral feature analysis of semiconductor thin disk laser (EI CONFERENCE)
会议论文
OAI收割
Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China
作者:
Li J.
;
Wang L.-J.
;
Wang L.-J.
;
Ning Y.-Q.
;
Li J.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
The semiconductor thin disk laser is a new type of semiconductor laser. This work gives the basic operation function of semiconductor disk laser
and analyses the heat effect by the experimentally measured photoluminescence spectrum of the laser chip at different pump power and different temperature. We can see that: with increasing pump power
the thermal effects of the gain material becomes seriously and causes the saturation of carrier lifetime
so the electron-hole pair created in the absorbtion layer have no enough time to rate to one of the wells
and the non-radiative recombination happens in the barrier. When the thermal effects becomes stronger
the chip will not lasing. This phenomenon is from the smaller energy offset between barrier and quantum well. We optimize the original structure design and experimental technology. A non-absorbing AlGaAs layer who is transparent to the pumping and laser wavelength is added to confine the carriers in the quantum wells. At the same time a DBR with double reflecting band is induced to improve the absorbing efficiency of the pumping light. The single QW is replaced by the three narrow QWs
This three QWs structure can add the quantum state of QW
increase the recombination probability of carriers in the QWs and reduce the heat effect. The chemical etch equipment is also improved to control the surface unevenness to be within 50 nm.