Preparation of Graphene Nanolayers through Surfactant-assisted Pure Shear Milling Method

2019 ◽  
Vol 1 (1) ◽  
pp. 28-33
Author(s):  
Asghar Kazemzadeh ◽  
Mohammad Ali Meshkat ◽  
Hooman Kazemzadeh ◽  
Mostafa Moradi ◽  
Reza Bahrami ◽  
...  
Keyword(s):  
Pure Shear ◽  
Milling Method ◽  
Graphene Nanolayers ◽  
Surfactant Assisted

Magnetic hardening mechanism of SmCo6.6Nb0.4 nanoflakes prepared by surfactant-assisted ball milling method

2014 ◽  
Vol 115 (17) ◽  
pp. 17A713 ◽  
Author(s):  
Y. Q. Li ◽  
M. Yue ◽  
Q. Wu ◽  
W. Q. Liu ◽  
Y. Q. Liu ◽  
...  
Keyword(s):  
Ball Milling ◽  
Hardening Mechanism ◽  
Milling Method ◽  
Magnetic Hardening ◽  
Surfactant Assisted

Green Methodology Development for the Surfactant Assisted Williamson Synthesis of 4-Benzyloxy Benzoic Acid (Ether) in Aqueous Media

2020 ◽  
Vol 57 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Sangita Mandal ◽  
Satyajit Biswas ◽  
Monohar Hossain Mondal ◽  
Bidyut Saha
Keyword(s):  
Benzoic Acid ◽  
Aqueous Media ◽  
Methodology Development ◽  
Green Methodology ◽  
Surfactant Assisted

Comparative characteristics of provisional crowns made by CAD/CAM milling and 3D printing

2020 ◽  
pp. 45-49
Author(s):  
A.V. Stomatov ◽  
D.V. Stomatov ◽  
P.V. Ivanov ◽  
V.V. Marchenko ◽  
E.V. Piitsky ◽  
...  
Keyword(s):  
3D Printing ◽  
Good Alternative ◽  
Digital Model ◽  
Dental Practice ◽  
Production Methods ◽  
Automated Production ◽  
3D Printing Technology ◽  
Cad Cam ◽  
Milling Method ◽  
Technology Comparison

In this work, the authors studied and compared the two main methods used in dental practice for the automated production of orthopedic structures: the widely used CAD / CAM milling method and the 3D printing technology. As an object of research, temporary crowns were used, which were made on the basis of the same digital model: a) by the method of CAD / CAM milling from polymethylmethacrylate disks; b) by 3D printing from photopolymer resin based on LCD technology. Comparison of production methods and finished designs was carried out according to the following characteristics: strength, durability, aesthetic qualities, accuracy of orthopedic designs, etc. According to the results of the study, it was concluded that 3D printing can be a good alternative to CAD / CAM milling in solving problems of temporary prosthetics.

Structure-controlled Nanomaterial Synthesis using Surfactant-assisted Ball Milling- A Review

2014 ◽  
Vol 10 (3) ◽  
pp. 344-354 ◽  
Author(s):  
Mahbub Ullah ◽  
Md. Ali ◽  
Sharifah Hamid
Keyword(s):  
Ball Milling ◽  
Nanomaterial Synthesis ◽  
Surfactant Assisted

scholarly journals Evaluation of dimensional accuracy of dental bridges manufactured with conventional casting technique and CAD/CAM system with Ceramill Sintron blocks using CMM

2018 ◽  
Vol 12 (4) ◽  
pp. 264-271 ◽  
Author(s):  
Alireza Izadi ◽  
Fariborz Vafaee ◽  
Arash Shishehian ◽  
Ghodratollah Roshanaei ◽  
Behzad Fathi Afkari
Keyword(s):  
Reference Model ◽  
Coordinate Measuring Machine ◽  
Dimensional Accuracy ◽  
Three Dimensions ◽  
Casting Technique ◽  
Dimensional Changes ◽  
Conventional Casting ◽  
Cad Cam ◽  
Milling Method ◽  
Measuring Machine

Background. Recently, non-presintered chromium-cobalt (Cr-Co) blocks with the commercial name of Ceramill Sintron were introduced to the market. However, comprehensive studies on the dimensional accuracy and fit of multi-unit frameworks made of these blocks using the coordinate measuring machine (CMM) are lacking. This study aimed to assess and compare the dimensional changes and fit of conventional casting and milled frameworks using Ceramill Sintron. Methods. A metal model was designed and scanned and 5-unit frameworks were fabricated using two techniques: (I) the conventional casting method (n=20): the wax model was designed, milled in the CAD/CAM machine, flasked and invested; (II) the milling method using Ceramill Sintron blocks (n=20): the wax patterns of group 1 were used; Ceramill Sintron blocks were milled and sintered. Measurements were made on the original reference model and the fabricated frameworks using the CMM in all the three spatial dimensions, and dimensional changes were recorded in a checklist. Data were analyzed with descriptive statistics, and the two groups were compared using one-way ANOVA and Tukey test (α=0.05). Results. The fabricated frameworks in both groups showed significant dimensional changes in all the three dimensions. Comparison of dimensional changes between the two groups revealed no significant differences (P>0.05) except for transverse changes (arch) that were significantly greater in Ceramill Sintron frameworks (P<0.05). Conclusion. The two manufacturing processes were the same regarding dimensional changes and the magnitude of marginal gaps and both processes resulted in significant dimensional changes in frameworks. Ceramill Sintron frameworks showed significantly greater transverse changes than the conventional frameworks.

An octahedral stress-based fracture criterion for hyperelastic materials

2020 ◽  
pp. 095440622097213
Author(s):  
A Hamdi ◽  
A Boulenouar ◽  
N Benseddiq
Keyword(s):  
Pure Shear ◽  
Thermoplastic Elastomer ◽  
Styrene Butadiene Rubber ◽  
Butadiene Rubber ◽  
Principal Stresses ◽  
Hyperelastic Materials ◽  
Biaxial Tests ◽  
Set Up ◽  
Loading Modes ◽  
Styrene Butadiene

No unified stress-based criterion exists, in the literature, for predicting the rupture of hyperelastic materials subjected to mutiaxial loading paths. This paper aims to establish a generalized rupture criterion under plane stress loading for elastomers. First, the experimental set up, at breaking, including various loading modes, is briefly described and commented. It consists of uniaxial tests, biaxial tests and pure shear tests, performed on different rubbers. The used vulcanizate and thermoplastic rubber materials are a Natural Rubber (NR), a Styrene Butadiene Rubber (SBR), a Polyurethane (PU) and a Thermoplastic elastomer (TPE). Then, we have investigated a new theoretical approach, based upon the principal stresses, to establish a failure criterion under quasi-static loadings. Thus, we have proposed a new analytical model expressed as a function of octahedral stresses. Quite good agreement is highlighted when comparing the ultimate stresses, at break, between the experimental data and the prediction of the proposed criteria using our rubber-like materials.

scholarly journals Correction: An anionic and cationic surfactant-assisted hydrothermal synthesis of cobalt oxide nanoparticles as the active electrode material for supercapacitors

2021 ◽  
Author(s):  
R. R. Samal ◽  
Aneeya K. Samantara ◽  
S. Mahalik ◽  
J. N. Behera ◽  
B. Dash ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Cobalt Oxide ◽  
Cationic Surfactant ◽  
Electrode Material ◽  
Oxide Nanoparticles ◽  
Active Electrode ◽  
Cobalt Oxide Nanoparticles ◽  
Surfactant Assisted

Correction for ‘An anionic and cationic surfactant-assisted hydrothermal synthesis of cobalt oxide nanoparticles as the active electrode material for supercapacitors’ by R. R. Samal et al., New J. Chem., 2021, 45, 2795–2803; DOI: 10.1039/D0NJ05088A.

Influence of surfactant-assisted synthesis and different operational parameters on photocatalytic performance of Cu2FeSnS4 particles

2021 ◽  
Vol 24 ◽  
pp. 101134
Author(s):  
Akmal Abbas ◽  
Keyan Li ◽  
Xinwen Guo ◽  
Aimin Wu ◽  
Chunshan Song ◽  
...  
Keyword(s):  
Photocatalytic Performance ◽  
Operational Parameters ◽  
Surfactant Assisted
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