scholarly journals XRD Analysis of Calcium Silicate Coating on Titanium Alloy ('Article withdrawn' by the author in response to some plagiarized portion reported)

2011 ◽  
Vol 4 (11) ◽  
pp. 1478-1480
Author(s):  
Manoranjan Kumar Singh
Keyword(s):  
Titanium Alloy ◽  
Calcium Silicate ◽  
Xrd Analysis ◽  
Silicate Coating

scholarly journals nvestigation of Morphology of Ti-6Al-7Nb after sulphuric anodizing

10.18048/5306 ◽  
2017 ◽  
Vol 53 (1) ◽  
pp. 85-91
Author(s):  
Momchil Manov
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Structural Analysis ◽  
Quality Assessment ◽  
Surface Treatment ◽  
Xrd Analysis ◽  
Unique Combination ◽  
Eds Analysis ◽  
Excellent Corrosion Resistance

Titanium alloys possess unique combination of good mechanical properties and excellent corrosion resistance which make them an attractive material for application in many engineering areas. Along with these properties there are some disadvantages which can be eliminated successfully using different surface treatment methods. One of the most commonly used among them is anodizing. This article presents investigation of the results obtained from anodizing titanium alloy Ti-6Al-7Nb using sulphuric acid. The quality assessment and morphology of the anodized layer is made using a micro structural analysis, EDS analysis, XRD analysis and microhardness measurements.

Amorphous Calcium Silicate Coating on Metallic Titanium

2006 ◽  
Vol 11-12 ◽  
pp. 235-238
Author(s):  
El-Sayed Ghaith ◽  
Toshihiro Kasuga ◽  
Masayuki Nogami
Keyword(s):  
Calcium Silicate ◽  
Sol Gel ◽  
Titanium Substrate ◽  
Metallic Titanium ◽  
Silicate Coating ◽  
Tissue Replacement ◽  
Biomimetic Apatite ◽  
Silicate Film ◽  
Deposited Film ◽  
Deposited Films

Amorphous calcium silicate coating on a metallic titanium substrate for hard tissue replacement was prepared by a sol-gel method. Calcium silicate film was deposited on a titanium substrate by a spin-coating technique and subsequently heated at 500°C for 2 h in air. The deposited film, which was dense, had thickness of about 800 nm and strongly adhered to the substrate. Biomimetic apatite-forming ability of the deposited films was examined by soaking in simulated body fluid (SBF). Thin film X-ray diffractometry and scanning electron microscopy showed the formation of apatite on the surface after 10 days of soaking in SBF.

Preparation and Characterization of Calcium Silicate Slag Based Lightweight Wall Materials

2012 ◽  
Vol 512-515 ◽  
pp. 110-114 ◽  
Author(s):  
Lei Hou ◽  
Jin Hong Li ◽  
Ling Xin Tong
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Calcium Silicate ◽  
Raw Materials ◽  
Xrd Analysis ◽  
Potassium Feldspar ◽  
Water Soluble ◽  
Silicate Slag ◽  
Calcium Silicate Slag ◽  
Wall Materials

Potassium feldspar (KAlSi3O8) can be used to extract potassium to solve the shortage of water soluble potash resources in China, but it will produce large amount of calcium silicate slag. Resource recycling from calcium silicate slag can be realized by synthesising wall materials. In this research， calcium silicate slag based lightweight wall materials have been successfully prepared by calcium silicate hydrates (CSH), lime and fly ash through autoklave process. Furthermore, the wall materials are charactered by strength determination, X-ray diffraction (XRD) analysis, and Scanning electron microscopy (SEM) analysis. The results show that the compressive strength is mainly influenced by the lime/fly ash mass ratio (L/F), CSH content and water/solid ratio (W/S). The compressive strength of 21.1-23.9 MPa and density of 0.87-0.91 g/cm3 are achieved respectively with the L/F value of 0.82-1.00, CSH content of 70 % and W/S of 0.9. The main hydrate product of wall materials is 11Å tobermorite [Ca5(OH)2Si6O16•4H2O], which is partly formed from the phase transformation of CSH, and partly produced by the reaction among raw materials during the process of autoclaving. The tobermorite is easy formed at low L/F value and it has a contribution to the low density for its flake-like structure that make the materials porous.

The Effects of Cerium Oxide Incorporation in Calcium Silicate Coating on Bone Mesenchymal Stem Cell and Macrophage Responses

2016 ◽  
Vol 177 (1) ◽  
pp. 148-158 ◽  
Author(s):  
Kai Li ◽  
Jiangming Yu ◽  
Youtao Xie ◽  
Mingyu You ◽  
Liping Huang ◽  
...  
Keyword(s):  
Stem Cell ◽  
Mesenchymal Stem Cell ◽  
Cerium Oxide ◽  
Calcium Silicate ◽  
Silicate Coating

Bioactive Calcium Silicate Coating of Titania Nanotubes for Controlled Drug Release

2014 ◽  
Vol 1033-1034 ◽  
pp. 1005-1008
Author(s):  
Ping Li ◽  
Zhang Wang ◽  
Fei Luo ◽  
Xiu Feng Xiao
Keyword(s):  
Drug Release ◽  
Calcium Silicate ◽  
Controlled Drug Release ◽  
Burst Release ◽  
X Ray Diffraction ◽  
Immersion Method ◽  
Silicate Coating ◽  
Titania Nanotube Arrays ◽  
Ft Ir ◽  
Electronic Microscope

A novel and facile process called “alternative loop immersion method” formed bioactive and biocompatible Zn-doped calcium silicate coating over the drug-loaded titania nanotube arrays to improve the properties of drug release. The samples were characterized by scanning electronic microscope (SEM), x-ray diffraction (XRD) and fourier transform infrared (FT-IR). The results show that TNTs modified by Zn-doped calcium silicate coating possess improved drug release characteristics with reduced burst release (from 83% to 66%) and prolonged drug release (from 11 days to over 15 days). This approach provides an alternative to tailor the surface of TNTs and offer considerable propects for diverse biomedical applications.

Calcium silicate coating derived from Portland cement as treatment for hypersensitive dentine

2008 ◽  
Vol 36 (8) ◽  
pp. 565-578 ◽  
Author(s):  
Maria Giovanna Gandolfi ◽  
Farascioni Silvia ◽  
Pashley David H ◽  
Giorgio Gasparotto ◽  
Prati Carlo
Keyword(s):  
Portland Cement ◽  
Calcium Silicate ◽  
Silicate Coating

scholarly journals Conversion of Waste Marble Powder into a Binding Material

2020 ◽  
Vol 6 (3) ◽  
pp. 431-445 ◽  
Author(s):  
Mohammad Adeel Khan ◽  
Bazid Khan ◽  
Khan Shahzada ◽  
Sajjad Wali Khan ◽  
Nauman Wahab ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Calcium Silicate ◽  
Fine Particles ◽  
Thermo Gravimetric Analysis ◽  
Chemical Properties ◽  
Xrd Analysis ◽  
Gravimetric Analysis ◽  
Electron Microscopic ◽  
Binding Material ◽  
Marble Powder

In the marble industry, a lot of marble is wasted in the form of odd blocks of various sizes and slurry consisting of water and micro-fine particles. The slurry on drying converts into powder. Both slurry and powder have adverse effects on the environment. This research is focused on the gainful utilization of waste marble powder (WMP) by converting it into a valuable binding material. For this purpose, WMP and clay were collected, and their physical and chemical properties were determined. A mix of WMP and clay was prepared and burnt at a temperature around 1300 oC. The burnt mix was ground to powder form to get marble cement (MC). The MC was then used in mortar. The compressive and flexural strengths of mortar cubes and prisms were determined. Apart from this, X-ray diffraction (XRD) analysis, thermo-gravimetric analysis (TGA) and scanning electron microscopic (SEM) analysis were also carried out. The chemical composition showed that the MC has 52.5% di-calcium silicate (C2S) and 3.5% tri-calcium silicate (C3S).The  compressive strength of MC mortar after 28 days curing is 6.03 MPa, which is higher than M1 mortar of building code of Pakistan (5 MPa). The compressive strength of MC mortar after one year is 20.67 MPa, which is only 17% less than OPC mortar.

In Vitro Bioactivity of Injectable Ceramic Orthopaedic Cements

2006 ◽  
Vol 309-311 ◽  
pp. 833-836 ◽  
Author(s):  
Adam Faris ◽  
Hakan Engqvist ◽  
Jesper Lööf ◽  
Mikael Ottosson ◽  
Leif Hermansson
Keyword(s):  
Calcium Phosphate ◽  
Calcium Aluminate ◽  
Calcium Silicate ◽  
Sample Surface ◽  
Xrd Analysis ◽  
Surface Zone ◽  
Surface Films ◽  
In Vitro Bioactivity ◽  
Edx Analyses

The objective of this paper is to investigate and compare the in vitro bioactivity of three injectable cements for orthopaedic applications. The cements were all based on chemically bonded ceramics technology; calcium phosphate (Norian SRS), and experimental versions of calcium silicate and calcium aluminate cements. The cements were mixed with their respective liquids and were after setting stored in phosphate buffered saline at 37 °C for time periods of 1h, 24 h, 7 days and 30 days. After storage the samples were analysed with scanning electron microscopy (SEM), thin film X-Ray diffraction (TF-XRD) and energy dispersive spectroscopy (EDS) for the presence of possible apatite on the sample surface. The SEM and EDX analyses showed that surface films containing Ca and P (along with the other atoms present in the materials) were formed on all materials. Thus reactions with the storage medium had occurred. The TF-XRD analysis confirmed the presence of apatite for the calcium phosphate cement and the calcium aluminate cement. On the calcium silicate cement most of the surface zone seemed to be amorphous with only broad peaks corresponding to apatite. Thus all the tested materials showed signs of in vitro bioactivity.

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