Development of Standards for the Characterization of Natural Materials Used in Tissue Engineered Medical Products (TEMPs)

2008 ◽  
pp. 172-172-4
Author(s):  
DS Kaplan
Keyword(s):  
Natural Materials ◽  
Medical Products ◽  
Materials Used

Emerging Techniques for the Characterization of Nano-Mechanical Properties of Integrated Circuit Components

2008 ◽  
Author(s):  
Nicholas Randall ◽  
Rahul Premachandran Nair
Keyword(s):  
Mechanical Properties ◽  
Quality Control ◽  
Integrated Circuits ◽  
Integrated Circuit ◽  
Manufacturing Process ◽  
Solder Bumps ◽  
Initial Work ◽  
Circuit Components ◽  
Materials Used

Abstract With the growing complexity of integrated circuits (IC) comes the issue of quality control during the manufacturing process. In order to avoid late realization of design flaws which could be very expensive, the characterization of the mechanical properties of the IC components needs to be carried out in a more efficient and standardized manner. The effects of changes in the manufacturing process and materials used on the functioning and reliability of the final device also need to be addressed. Initial work on accurately determining several key mechanical properties of bonding pads, solder bumps and coatings using a combination of different methods and equipment has been summarized.

scholarly journals Analysis and characterization of materials used in heritage theatrical figurines

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Yuxuan Gong ◽  
Chengquan Qiao ◽  
Bochao Zhong ◽  
Jiarang Zhong ◽  
Decai Gong
Keyword(s):  
Materials Used ◽  
Characterization Of Materials

scholarly journals Characterization of calcium oxide in root perforation sealer materials

2012 ◽  
Vol 23 (5) ◽  
pp. 539-546 ◽  
Author(s):  
Carlos Estrela ◽  
Manoel Damião Sousa-Neto ◽  
Orlando Aguirre Guedes ◽  
Ana Helena Gonçalves Alencar ◽  
Marco Antonio Hungaro Duarte ◽  
...  
Keyword(s):  
Calcium Oxide ◽  
Mineral Trioxide Aggregate ◽  
Chemical Compounds ◽  
Internal Diameter ◽  
X Ray ◽  
Final Sample ◽  
Materials Used ◽  
Main Components ◽  
White Mineral

Root perforation represents an undesirable complication that may lead to an unfavorable prognosis. The aims of this study were to characterize and to compare the presence of calcium oxide (CaO) on the chemical composition of materials used for root perforation therapy: gray and white mineral trioxide aggregate (MTA) and Portland cement (PC), gray MTA+5%CaO and gray MTA+10%CaO. The last two materials were analyzed to evaluate the increase of CaO in the final sample. CaO alone was used as a standard. Eighteen polyethylene tubes with an internal diameter of 3 mm and 3 mm in length were prepared, filled and then transferred to a chamber with 95% relative humidity and a temperature of 37ºC. The chemical compounds (particularly CaO) and the main components were analyzed by energy-dispersive X-ray microanalysis (EDX). EDX revealed the following concentrations of CaO: gray MTA: 59.28%, white MTA: 63.09%; PC: 72.51%; gray MTA+5%CaO: 63.48% and gray MTA+10%CaO: 67.55%. The tested materials presented different concentrations of CaO. Even with an increase of 5 and 10% CaO in gray MTA, the CaO levels found in the MTA samples were lower than those found in PC.

The Dynamics for Aqueous Sodium Adsorption and Characterization of Natural Pyrophyllite

2011 ◽  
Vol 117-119 ◽  
pp. 1129-1132
Author(s):  
Bo Liu ◽  
Hai Feng Chen ◽  
Pei Song Tang
Keyword(s):  
Qualitative Analysis ◽  
Internal Structure ◽  
Electron Micrographs ◽  
Scanning Electron Micrographs ◽  
Adsorption Dynamics ◽  
Natural Mineral ◽  
Aqueous Sodium ◽  
Materials Used ◽  
Scanning Electron

In this experiment, pyrophyllite as the main materials used the flame photometer to measure adsorption. Using the qualitative analysis of the samples of XRD with internal structure and found that pyrophyllite used in the experiment as a natural mineral, the presence with other minerals. Meanwhile, scanning electron micrographs (SEM) from the display showed that the effect of pyrophyllite adsorption for cations should be more significant. Therefore, this experiment focused on the time, Na+ concentration, on the pyrophyllite and different pyrophyllite concentrations (adsorbent dosage) effect on the adsorption, in addition to the adsorption dynamics. The results showed that pyrophyllite adsorption sodium in the best time of equilibrium was 20 minutes, the concentration of NaCl was 50 mg/L, pH = 7, temperature was 313 K, the concentration of pyrophyllite was 5 mg/L.

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