scholarly journals FY05 HPCRM Annual Report: High-Performance Corrosion-Resistant Iron-Based Amorphous Metal Coatings

2007 ◽  
Author(s):  
J Farmer ◽  
J Choi ◽  
J Haslam ◽  
S Day ◽  
N Yang ◽  
...  
Keyword(s):  
High Performance ◽  
Annual Report ◽  
Amorphous Metal ◽  
Metal Coatings ◽  
Corrosion Resistant ◽  
Iron Based

scholarly journals Corrosion Characterization of Iron-Based High-Performance Amorphous-Metal Thermal-Spray Coatings

2005 ◽  
Author(s):  
J. C. Farmer ◽  
J. J. Haslam ◽  
S. D. Day ◽  
D. J. Branagan ◽  
C. A. Blue ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Thermal Spray ◽  
High Performance ◽  
Thermal Spray Technology ◽  
Published Data ◽  
Corrosion Resistant ◽  
Spray Coatings ◽  
Nickel Based Alloy ◽  
Iron Based

New corrosion-resistant, iron-based amorphous metals have been identified from published data or developed through combinatorial synthesis, and tested to determine their relative corrosion resistance. Many of these materials can be applied as coatings with advanced thermal spray technology. Two compositions have corrosion resistance superior to wrought nickel-based Alloy C-22 (UNS # N06022) in some very aggressive environments, including concentrated calcium-chloride brines at elevated temperature. One of these compositions, SAM1651, is discussed in detail to illustrate the promise of this general class of materials.

Corrosion resistance of thermally sprayed high-boron iron-based amorphous-metal coatings: Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4

2007 ◽  
Vol 22 (8) ◽  
pp. 2297-2311 ◽  
Author(s):  
J.C. Farmer ◽  
J.J. Haslam ◽  
S.D. Day ◽  
T. Lian ◽  
C.K. Saw ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Passive Film ◽  
High Performance ◽  
Amorphous State ◽  
Spray Coating ◽  
Amorphous Metal ◽  
General Corrosion ◽  
Neutron Absorber ◽  
High Boron ◽  
Iron Based

An iron-based amorphous metal, Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4 (SAM2X5), with very good corrosion resistance has been developed. This material was prepared as a melt-spun ribbon, as well as gas atomized powder and a thermal-spray coating. During electrochemical testing in several environments, including seawater at 90 °C, the passive film stability was found to be comparable to that of high-performance nickel-based alloys and superior to that of stainless steels, based on electrochemical measurements of the passive film breakdown potential and general corrosion rates. This material also performed very well in standard salt fog tests. Chromium (Cr), molybdenum (Mo), and tungsten (W) provided corrosion resistance, and boron (B) enabled glass formation. The high boron content of this particular amorphous metal made it an effective neutron absorber and suitable for criticality control applications. This material and its parent alloy maintained corrosion resistance up to the glass transition temperature and remained in the amorphous state during exposure to relatively high neutron doses.

Iron-Based Amorphous Metals: High-Performance Corrosion-Resistant Material Development

2009 ◽  
Vol 40 (6) ◽  
pp. 1289-1305 ◽  
Author(s):  
Joseph Farmer ◽  
Jor-Shan Choi ◽  
Cheng Saw ◽  
Jeffrey Haslam ◽  
Dan Day ◽  
...  
Keyword(s):  
High Performance ◽  
Amorphous Metals ◽  
Resistant Material ◽  
Corrosion Resistant ◽  
Material Development ◽  
Iron Based

scholarly journals High Performance of Phenol Adsorption using Iron Based SBA-15 Synthesized by Loading-Microwave Method

2019 ◽  
Vol 35 (3) ◽  
pp. 1022-1028
Author(s):  
Yuvita Eka Pertiwi ◽  
Maria Ulfa
Keyword(s):  
Mesoporous Silica ◽  
Molecular Sieves ◽  
High Performance ◽  
Textural Properties ◽  
Hexagonal Structure ◽  
Kinetics Model ◽  
Element Analysis ◽  
Phenol Compounds ◽  
X Ray ◽  
Iron Based

The iron based mesoporous silica (Fe2O3/SBA-15) was studied for the first time for adsorption of phenol as a model adsorbate compound. The structural and textural properties of the synthesized samples were characterized by means of X-Ray Diffraction, Transmission Electron Microscopy, FTIR and element analysis techniques by Energy Dispersive X-Ray (EDX). The result of XRD analysis showed that mesoporous SBA-15 silica molecular sieves which modified with Fe2O3has a hexagonal structure with a pore size is 4.90 nm and iron contents (25.27%) were found on the surface of the Fe2O3/mesoporous silica SBA-15. While the FTIR analysis showed that Fe2O3/SBA-15 had functional group of assymetric Si-O-Si and Fe-O-Si which was found at 1085 cm-1 and 678 cm-1, respectively. Adsorption performance of Fe2O3/SBA-15 material investigated by phenol compounds as adsorbate model. The optimum contact time is 60 minutes and the Kinetics model of the mesoporous SBA-15 silica molecular sieves modified Fe2O3 can adsorb phenol compounds following the Kinetics Model Ho and McKay. The result optimum adsorption capacity occuring in the adsorption of phenol compounds by of the mesoporous SBA-15 silica molecular sieves modified Fe2O3 is 114.000 mg/g.

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