Assessment of reactions occurring during the solid state processing of iron-based titanium diboride composites

1992 ◽  
Vol 27 (20) ◽  
pp. 5661-5665 ◽  
Author(s):  
B. S. Terry ◽  
O. S. Chinyamakobvu
2021 ◽  
Vol 601 ◽  
pp. 120514 ◽  
Author(s):  
Rahamatullah Shaikh ◽  
Saeed Shirazian ◽  
Sarah Guerin ◽  
Eoin Sheehan ◽  
Damien Thompson ◽  
...  

1992 ◽  
Vol 194 (1-2) ◽  
pp. 150-152 ◽  
Author(s):  
J.L. Tallon ◽  
D.M. Pooke ◽  
R.G. Buckley ◽  
M.R. Presland ◽  
A. Mawdsley ◽  
...  

2018 ◽  
Vol 77 (3) ◽  
pp. 146-149 ◽  
Author(s):  
Madeva Nagaral ◽  
Shivananda Kalgudi ◽  
Virupaxi Auradi ◽  
Shivaputrappa Amarappa Kori

2019 ◽  
Vol 12 ◽  
pp. 718-724 ◽  
Author(s):  
Ye Wang ◽  
Hongyu Xu ◽  
Maoliang Hu ◽  
Sumio Sugiyama ◽  
Zesheng Ji

2019 ◽  
Vol 91 (9) ◽  
pp. 1471-1478 ◽  
Author(s):  
Francesco Papi ◽  
Giulia Targetti ◽  
Linda Cerofolini ◽  
Claudio Luchinat ◽  
Marco Fragai ◽  
...  

Abstract The fully characterization of tumor associated antigens (TAAs) and of tumor associated carbohydrate antigens (TACAs) have opened the avenue of cancer immunotherapy. The intrinsic poor immunogenicity of TACAs, however, spotlighted the importance of multivalent presentation of the antigen(s) to trigger an immune response. Nanoparticles are excellent scaffolds for this purpose. Here we reported on the easy glycosylation of iron-based and biocompatible dextran-based nanoparticles with 1, a mimetic of the TnThr antigen. The multivalent presentation of 1 induced the induction of TNF-α and IL-6/IL10, respectively. The multivalent glycosylation of silica nanoparticles (GSiNPs) was also performed and saccharide loading qualitative assessed by solid state NMR. Our results offer the proof of concept that biomolecules coating can also be investigated on solid system by NMR.


2015 ◽  
Vol 766-767 ◽  
pp. 234-239 ◽  
Author(s):  
K.R. Padmavathi ◽  
R. Ramakrishnan ◽  
K. Palanikumar

Aluminium metal matrix composites (AMMCs) are being considered as a group of superior material for its lightness, strength, high specific modulus, low coefficient of thermal expansion and good wear resistance properties. Solid state and liquid state processing methods are used to fabricate AMMCs. Achieving a uniform distribution of reinforcement within the matrix is one such challenge, which affects directly on the properties and quality of composite material. Powder metallurgy route, one of the solid state processing methods can be effectively used to get uniform dispersion of reinforcements with aluminium metal matrix. This paper presents the summary of the ball milling and stir casting processes to fabricate the AMMCs and its applications. Major issues like ball milling time, dispersion of reinforcements, grain size, the stirring time and speed are discussed. Also the effect of different reinforcement for AMMCs on the mechanical properties is discussed in detail.


1989 ◽  
Vol 4 (5) ◽  
pp. 1099-1102 ◽  
Author(s):  
E. A. Hayri ◽  
M. Greenblatt ◽  
K. V. Ramanujachary ◽  
M. Nagano ◽  
J. Oliver ◽  
...  

Samples of YBa2Cu3O7 were prepared by sol-gel, co-precipitation, and solid state processes. Sol-gel samples were prepared from a solution of yttrium, barium, and copper nitrates dissolved in ethylene glycol, co-precipitated samples were made by the amorphous citrate method, and solid state samples were prepared by conventional high temperature reaction of the appropriate metal oxides and carbonates. The sol-gel process was shown to yield superconducting samples of superior Meissner effect, critical current, and critical field. The co-precipitated samples contain impurities that affect the critical properties. The sol-gel and co-precipitated processes yield materials with well-formed, plate-like particles with a fairly uniform size of about 10 μm. The grains in the solid state sample are smaller but have a much wider distribution of sizes than the samples prepared by solution methods.


1996 ◽  
Vol 11 (6) ◽  
pp. 1373-1382 ◽  
Author(s):  
Y. S. Yuan ◽  
M. S. Wong ◽  
S. S. Wang

In associated papers [Y. S. Yuan, M. S. Wong, and S. S. Wang, J. Mater. Res. 11, 8–17 (1996); J. Mater. Res. (1996, in press)] it has been shown that weak thermo-mechanical properties of a bulk monolithic high-Tc superconductor (HTS) can be improved by introducing strong ceramic whiskers into the HTS ceramic materials. In this paper, we report a further study of incorporating Ag particulates, (Ag)p, in a bulk monolithic BPSCCO and in the MgO-whisker reinforced BPSCCO composite. Effects of the (Ag)p addition on processing, microstructure, and superconducting and mechanical properties of the bulk monolithic BPSCCO and the (MgO)w/BPSCCO composite are investigated. The results indicate that the highly ductile Ag particulates promote densification of the BPSCCO matrix phase in the composite during hot pressing. The microstructure of the HTS composite with the (Ag)p addition is similar to that in the HTS material without the (Ag)p. The (MgO)w/BPSCCO composite with 10% (by weight) Ag particulates has been shown to possess excellent superconducting properties. The (Ag)p addition to both the monolithic BPSCCO and the (MgO)w/BPSCCO is found to increase appreciably their fracture toughnesses, but has little effects on mechanical strengths of the materials. Quantitative relationships have been established among solid-state processing variables, HTS phase developments, microstructures, and superconducting and mechanical properties of the (Ag)p/BPSCCO and the (MgO)w/(Ag)p/BPSCCO HTS composites.


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