scholarly journals Experiment Study on Elastic Indicator of Thermal Shock Ceramic Materials——Implementation of Students’ Innovative Research Project of Shandong University of Science and Technology

2017 ◽  
Vol 100 ◽  
pp. 05086
Author(s):  
Yanxia Wang ◽  
Tiantian Sun ◽  
Yongli Bao ◽  
Xiaomin Ma ◽  
Zhendong Liu
Keyword(s):  
Thermal Shock ◽  
Science And Technology ◽  
Ceramic Materials ◽  
Experiment Study ◽  
Research Project ◽  
Innovative Research

scholarly journals Phase Transition and Coefficients of Thermal Expansion in Al2−xInxW3O12 (0.2 ≤ x ≤ 1)

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4021
Author(s):  
Andrés Esteban Cerón Cerón Cortés ◽  
Anja Dosen ◽  
Victoria L. Blair ◽  
Michel B. Johnson ◽  
Mary Anne White ◽  
...  
Keyword(s):  
Phase Transition ◽  
Thermal Expansion ◽  
Thermal Shock ◽  
Monoclinic Phase ◽  
Ceramic Materials ◽  
Precipitation Method ◽  
Scanning Calorimetry ◽  
Orthorhombic Crystal ◽  
Co Precipitation

Materials from theA2M3O12 family are known for their extensive chemical versatility while preserving the polyhedral-corner-shared orthorhombic crystal system, as well as for their consequent unusual thermal expansion, varying from negative and near-zero to slightly positive. The rarest are near-zero thermal expansion materials, which are of paramount importance in thermal shock resistance applications. Ceramic materials with chemistry Al2−xInxW3O12 (x = 0.2–1.0) were synthesized using a modified reverse-strike co-precipitation method and prepared into solid specimens using traditional ceramic sintering. The resulting materials were characterized by X-ray powder diffraction (ambient and in situ high temperatures), differential scanning calorimetry and dilatometry to delineate thermal expansion, phase transitions and crystal structures. It was found that the x = 0.2 composition had the lowest thermal expansion, 1.88 × 10−6 K−1, which was still higher than the end member Al2W3O12 for the chemical series. Furthermore, the AlInW3O12 was monoclinic phase at room temperature and transformed to the orthorhombic form at ca. 200 °C, in contrast with previous reports. Interestingly, the x = 0.2, x = 0.4 and x = 0.7 materials did not exhibit the expected orthorhombic-to-monoclinic phase transition as observed for the other compositions, and hence did not follow the expected Vegard-like relationship associated with the electronegativity rule. Overall, compositions within the Al2−xInxW3O12 family should not be considered candidates for high thermal shock applications that would require near-zero thermal expansion properties.

Corrigendum

2021 ◽  
Vol 21 (17) ◽  
pp. 2464-2464
Keyword(s):  
Science And Technology ◽  
Scientific Research ◽  
Uttar Pradesh ◽  
Research Project ◽  
Hpv E6 ◽  
Cycle Arrest ◽  
Anti Cancer ◽  
Cervical Cancer Cells ◽  
E6 And E7 ◽  
Funding Information

Minor changes are required in the Funding information and the acknowledgement for the article entitled “Organosulphur Compounds Induce Apoptosis and Cell Cycle Arrest in Cervical Cancer Cells via Downregulation of HPV E6 and E7 Oncogenes” in “Anti-Cancer Agents in Medicinal Chemistry, 2021, Vol. 21, No. 3, pp. 393-405.” The correct Funding information and Acknowledgement is given below: FUNDING: This project was funded by the Council of Science and Technology (CST), Lucknow, Uttar Pradesh, India (Sanction No. CST/374). The financial support during this research was also provided by the Deanship of Scientific Research, King Khalid University, Abha, Saudia Arabia through the General Research Project under grant number R.G.P. 01/48/42. ACKNOWLEDGEMENT: IAA is greatly thankful to the Council of Science and Technology (CST), Uttar Pradesh, India, for providing him project as a Principal Investigator. Authors would also like to acknowledge the support of the King Khalid University through the General Research Project under grant number R.G.P. 01/48/42. under the Deanship of Scientific Research, King Khalid University, Abha, Saudia Arabia

The Comparative Analysis of the Non-Symmetric Thermal Shock Crack Propagation in Al2O3 and ZrO2 Bars

2006 ◽  
Vol 45 ◽  
pp. 1640-1645 ◽  
Author(s):  
Tomasz Sadowski ◽  
Zdzislaw Librant ◽  
Marek Boniecki
Keyword(s):  
Composite Material ◽  
Crack Propagation ◽  
Thermal Shock ◽  
Problem Formulation ◽  
Ceramic Materials ◽  
Theoretical Modelling ◽  
Theoretical Problem ◽  
Mechanical And Thermal Properties ◽  
Intensity Factors ◽  
Thermal Shock Problem

The aim of the paper is theoretical modelling and experimental verification of the nonsymmetric thermal shock crack propagation in compound ceramic Al2O3 and ZrO2. The theoretical problem formulation concerns the thermal shock problem in a strip or bar made of nonhomogeneous material, which can exhibit local fluctuation of its mechanical and thermal properties. Such approach allows for: analysis of the real non-homogeneous ceramic materials and solution of the composition optimisation problem for composite material with respect to thermal shock sensitivity. In particular the presented approach enables estimation of the stress intensity factors during thermal shock for any continuous composition of the ceramic material.

scholarly journals management of scientific research projects in local universities

2016 ◽  
Vol 4 (11) ◽  
pp. 68-72
Author(s):  
Li Fangzheng ◽  
Xiaoyun Zhang
Keyword(s):  
Local Governments ◽  
Science And Technology ◽  
Scientific Research ◽  
Research Projects ◽  
Research Project ◽  
Innovative Management ◽  
State And Local

With the increasing development of science and technology, and state and local governments paying more attention to the power of science and technology, many local universities are faced with a series of innovative management environment, such as, the growing amount of scientific research projects substantially, the improving level, the wide areas involved, which put forward some new requests in projects management for local universities. According to this question ,the scientific research projects management in local universities are ought to make the thinking correct, the essential captured , the supervision strengthen, the distinguishing feature stand out .And local universities should, in the links of research project application, project initation, project inspection, projiect accepting and the use of funds strengthen the management, improving the quality projects management, enhancing the comprehensive strength of scientific research.

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