Film Properties of High-Performance FSG Films

2001 ◽  
Vol 686 ◽  
Author(s):  
T. Yoda ◽  
H. Miyajima ◽  
K. Fujita ◽  
R. Nakata ◽  
Y. Nishiyama

AbstractAn advanced FSG film of k=3.4 was developed, which exhibited excellent resistance for moisture absorption. Physical and chemical properties of this advanced FSG film were compared by typical FSG films deposited in both high density plasma (HDP) and PE-CVD reactors, for the same k value.The advanced FSG film appears to be superior to the HDP-FSG film by a wide margin in the following tests. The moisture absorption rate by TDS (after 4 days of air exposure) is about 5 times lower, the hardness was 1.8 times more, and the hygroscopicity (after 1 hr. boiling) was 2.6 times lower.We conclude that these differences are mainly due to the unique film structure of the advanced FSG film.

2014 ◽  
Vol 93 ◽  
pp. 82-89 ◽  
Author(s):  
Aryan Azad ◽  
Eul Noh ◽  
Kang Seop Yun ◽  
Hee June Jeong ◽  
Sang Chul Jung ◽  
...  

Hydrogen has unique physical and chemical properties which present benefits and challenges to its successful widespread adoption as a fuel. The photoelectrochemical (PEC) water splitting process with semiconductor metal oxides can be a promising solution to the global energy problem. Although amongst metal oxides Fe2O3 by 2.2 eV bang gap energy is more applicable, for reducing the recombination of electron and hole, Fe was doped into TiO2. In this study Fe2O3/Fe doped TiO2 photocatalysts were compared with Fe-doped TiO2 and TiO2 structures by using layer by layer-self-assemble (LBL-SA) method and dipping process on FTO glass. According to our results the Fe2O3 coated on Fe doped TiO2 /FTO has had best results.


RSC Advances ◽  
2015 ◽  
Vol 5 (99) ◽  
pp. 81707-81712 ◽  
Author(s):  
Sung Ho Song ◽  
Jung Mo Kim ◽  
Kwang Hyun Park ◽  
Dong Ju Lee ◽  
O.-Seok Kwon ◽  
...  

Nano-fillers have provided a big advantage for enhancing the performance of rubber composites through leading the synergy effects in the physical and chemical properties.


Nanoscale ◽  
2021 ◽  
Author(s):  
Xianyu Chu ◽  
Fanling Meng ◽  
Ting Deng ◽  
Wei Zhang

Designing and synthesizing new materials with special physical and chemical properties are the key steps to assembling high performance supercapacitors. Metal organic framework (MOF) derived porous carbon material has drawn...


2020 ◽  
Vol 5 (4) ◽  
pp. 23-28
Author(s):  
N. V. Rudometova ◽  
I. S. Kim

In Russia, in the production of meat and sausage products, the food colour, named as Red rice, is use. Red rice is obtain by the cultivation the strains of the Monascus fungus on various carbohydrate substrates, for example rice. That Red rice may contain the mycotoxin citrinin, but neither the purity of the food colour nor the safety profile are regulated. The aim of this work was to study the physical and chemical properties of Red rice and to develop method for its determination in sausage products. The experiments were carried out on model and commercial samples of sausages. The samples were analyzed using spectrophotometry and highefficiency planar and liquid chromatography. Spectrophotometric analysis revealed differences in solubility, coloring power, spectral characteristics, composition and ratio of pigments in commercial samples of Red rice. The extraction parameters of colouring substances from sausages model samples were determined. It has been established that Red rice is extracted with chloroform, acetone, ethanol and its aqueous solutions. Petroleum ether was proposed for degreasing sausages. Red rice from sausages was extracted with acetone because it did not extract synthetic colours and carminic acid. It was found, that 90% of Red rice is extracted from samples of sausages by double extraction with ultrasonic treatment with a power of 128 W. High performance thin layer chromatography method and high performance liquid chromatography method for the Red rice identification was proposed. The content of Red rice in the extracts was determined by spectrophotometric method. The developed method for the determination of Red rice was tested on commercial samples of sausage products.


2022 ◽  
Author(s):  
Jinbo Pang ◽  
Yanhao Wang ◽  
Xiaoxin Yang ◽  
Lei Zhang ◽  
Yufen Li ◽  
...  

2D nonlayered materials have attracted enormous research interests due to their novel physical and chemical properties with the confined dimensions. Platinum sulfide as one of the most common platinum-group minerals...


2010 ◽  
Vol 163-167 ◽  
pp. 4575-4579 ◽  
Author(s):  
Yong Wang ◽  
Wen Hao Ye ◽  
Heng Bo Liu

This article describes the physical and chemical properties of EMR and the preparation of a new building material with it. The results show that the main components of EMR are gypsum and quartz, supplemented by a small amount of cement, appropriate siliceous material and quicklime in EMR could be prepared high performance EMR autoclaved brick.


2011 ◽  
Vol 130-134 ◽  
pp. 3830-3834
Author(s):  
Hong Jie Pei ◽  
Y.J. Shen ◽  
Chun Gen Shen ◽  
Gui Cheng Wang

Green machining is a process that implements sustainable development strategy. In order to reduce cost and decrease environmental pollution in manufacturing process, a sort of biodegradable castor oil-based emulsion is developed, whose physical and chemical properties can correspond with the national standards. The cooling and lubricating properties of the emulsion are better while machining steel materials through comparative experiments with certain imported commodity synthetic cutting fluid. The emulsion can successfully substitute for commodity fluid because of its high performance-price ratio.


2021 ◽  
Vol 2021 (1) ◽  
pp. 11-18
Author(s):  
D Xadjibaev ◽  
◽  
F Erkabaev

Natural minerals, such as bentonite, kaolinite, biotite, vermiculite, and glauconite, which have sufficiently high performance properties in the softening of industrial and waste water, softening and cleaning of heavy metals, are promising. To study the physical and chemical properties of glauconites from various deposits of the country, samples of glauconite mineral were brought from the Parkent, Bukhara, and Karakalpak mountain reserves, their physical and chemical properties were studied, compared with each other, and the optimal reserve was selected. The reserves of these deposits are sufficient and have the potential for industrial development. The purpose of this study is to compare samples of natural mineral reserves of glauconite and select the optimal deposit for raw materials. Methodology. Samples of glauconite minerals from the Parkent, Bukhara and Karakalpak mines were taken as the object of the study. Chemical, mineralogical, and thermal analyses were performed on the samples, and the fractional composition was determined. Scientific novelty. The main part of the mineral glauconite (50-55%) in the raw material is found in fractions of 0.08-0.125 mm. The most suitable raw material was the Parkent glauconite deposit, which has a relatively high content of potassium, which tends to exchange with other metals during the sorption process. The received data. Based on the conducted experiments, samples of glauconites from Parkent, Bukhara, and Karakalpak were subjected to chemical and mineralogical analyses. The maximum amount of the mineral glauconite was found in the fractions of the raw material (less than 0.125 mm). The most suitable deposit of raw materials for processing the mineral glauconite was selected and an environmentally friendly adsorbent was obtained.


2020 ◽  
Vol 869 ◽  
pp. 21-27
Author(s):  
Zakhirat Kh. Sultigova ◽  
Zareta I. Inarkieva ◽  
Rima Ch. Bazheva ◽  
Arsen M. Kharaev ◽  
Madina Yalkhoroeva

The modified aromatic polyethersulfones are synthesized. It is shown that the property of the obtained polymers depends on the ratio of the starting monomers. The presence in the initial monomer of two chlorine atoms in combination with an unsaturated bond provides the polyethersulfones based on it with high fire resistance and good physical and chemical properties, including frost resistance.


2017 ◽  
Vol 751 ◽  
pp. 701-706 ◽  
Author(s):  
Pusit Pookmanee ◽  
Pimchanok Longchin ◽  
Jitreephan Phanmalee ◽  
Wiyong Kangwansupamonkon ◽  
Sukon Phanichphant

Graphene oxide (GO) powder was synthesized by modified Hummer’s method. Bismuth vanadate (BiVO4) nanoparticle was synthesized by solvothermal method at 100 and 200°C for 3h. Composite graphene oxide and bismuth vanadate (GO/BiVO4) nanoparticle were synthesized by mixed oxide method in weight ratio of 0.20:1.00. The physical and chemical properties were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectrometer (EDS) and surface area analyzer (BET). The photocatalytic degradation of methomyl performance was determined by high performance liquid chromatograph (HPLC). Composite GO/BiVO4 nanoparticle at 200°C for 3h was the highest photocatalytic degradation of methomyl.


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