Bio-Ceramic Amalgams Based on Hydroxyapatite Doped by Cobalt, Nickel and Their Toxicity Discussion

2020 ◽  
pp. 66-71
Author(s):  
Mohammed Eddya ◽  
Khalil El-Hami
Keyword(s):  
Cobalt Nickel

KOVAR A

Alloy Digest ◽  
1953 ◽  
Vol 2 (10) ◽  
Keyword(s):  
Physical Properties ◽  
Surface Treatment ◽  
High Resistance ◽  
Iron Alloy ◽  
Heat Treating ◽  
Nickel Iron ◽  
Cobalt Nickel ◽  
Expansion Curve ◽  
Hard Glass ◽  
Nickel Iron Alloy

Abstract KOVAR A is a cobalt, nickel, iron alloy recommended for sealing into hard glass. Has similar expansion curve as glass, makes firm bond between metal and glass, is easy to machine and form, and has high resistance to thermal shock. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-3. Producer or source: Carborundum Company, Refractories Division.

WIELAND DURO ELMEDUR HA

Alloy Digest ◽  
2020 ◽  
Vol 69 (3) ◽  
Keyword(s):  
Thermal Conductivity ◽  
Physical Properties ◽  
Cobalt Nickel ◽  
Hardened Condition

Abstract Wieland Duro Elmedur HA is a heat-treatable copper-cobalt-nickel-beryllium alloy. In the age hardened condition, this alloy exhibits high electrical and thermal conductivity along with moderate strength and hardness. This datasheet provides information on composition, physical properties, and hardness. It also includes information on joining. Filing Code: Cu-906. Producer or source: Wieland Duro GmbH.

MULTIMET (N-155)

Alloy Digest ◽  
1961 ◽  
Vol 10 (12) ◽  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
Age Hardening ◽  
Nickel Chromium ◽  
Cobalt Nickel ◽  
Temperature Performance ◽  
High Oxidation ◽  
Scaling Resistance ◽  
Made In

Abstract MULTIMET alloy is cobalt-nickel-chromium-iron austenitic alloy having high oxidation and scaling resistance along with good high-temperature properties. It tends to work harden but does not respond significantly to age-hardening. It is made in a wrought grade (0.08-0.16% carbon) and a casting grade (0.20% max. carbon). This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep and fatigue. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SS-28. Producer or source: Haynes Stellite Company. Originally published May 1955, revised December 1961.

Uncooled bolometer for millimeter-wave detection using manganese-cobalt-nickel-oxide thin film

2020 ◽  
Vol 13 (12) ◽  
pp. 124002
Author(s):  
Tao Hu ◽  
Wanli Ma ◽  
Jing Wu ◽  
Zhibo Zhang ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Thin Film ◽  
Nickel Oxide ◽  
Millimeter Wave ◽  
Oxide Thin Film ◽  
Wave Detection ◽  
Cobalt Nickel ◽  
Cobalt Nickel Oxide ◽  
Nickel Oxide Thin Film

Extraction of iron, cobalt, nickel and copper with dibenzyl sulfoxide solution in toluene

1979 ◽  
Vol 44 (7) ◽  
pp. 2024-2031 ◽  
Author(s):  
František Vláčil ◽  
Huynh Dang Khanh
Keyword(s):  
Nitric Acid ◽  
Hydrochloric Acid ◽  
Distribution Ratio ◽  
Separation Factor ◽  
Chromatographic Separation ◽  
The Other ◽  
Iron Cobalt ◽  
Cobalt Nickel ◽  
Factor Α

The dependence of the distribution ratio of the metal on the concentration of hydrochloric of nitric acid was examined for Fe, Co, Ni and Cu extraction with 0.05M solution of dibenzylsulfoxide in toluene. Iron is extracted considerably more than the other metals, and is better extracted from hydrochloric acid than from nitric acid. The separation factor αFe/M (for 8M-HCl) is of the order of 104; this is not sufficient for a separation of trace quantities of iron from Co, Ni and Cu, but even at lower concentrations of HCl (e.g., 5M) the values is high enough for extraction chromatographic separation. The composition of the iron solvate extracted from HCl or LiCl medium was determined to be HFeCl4.2 B (B = dibenzyl sulfoxide).

scholarly journals Effect of cobalt (nickel) oxide on the properties of zinc–titanium sorbents for high temperature desulphurization of model coal gas

2021 ◽  
Author(s):  
M. Chomiak ◽  
J. Trawczyński ◽  
M. Zawadzki
Keyword(s):  
High Temperature ◽  
Sorption Capacity ◽  
Catalytic Effect ◽  
Mixed Oxides ◽  
Mixed Metal Oxides ◽  
Coal Gas ◽  
Cobalt Nickel ◽  
Texture Structure ◽  
Cobalt Nickel Oxide ◽  
Co Doped

AbstractZn–Ti–Co(Ni) sorbents for H2S removal from model hot coal were prepared and characterized. Effects of cobalt (Co) and nickel (Ni) on the sorbents texture, structure, H2S sorption capacity and regeneration properties were determined. TiO2 formed mixed metal oxides with CoO and NiO in the fresh sorbents, while TiO2 and nanocrystalline sulfides of Zn, Co, Ni were found in sulphided ones. The oxidative regeneration of sulphided sorbents re-formed mixed oxides. Sorption capacity of studied materials increased along with an increase of the amount of added Co (Ni) and also with the number of work cycles. Co-doped Zn–Ti materials adsorbed up to 244% more sulfur than these of Zn–Ti, while Ni-doped materials adsorbed ca. twice more H2S than the corresponding Co-doped sorbents. The addition of Co (Ni) decreased the temperature of ZnS oxidation. The catalytic effect of the Co (Ni) oxides on the oxidation of ZnS was suggested.

The Use of the Chorioallantoic Membrane (CAM) of the Embryonic Chick for the Direct Assessment of Implant Toxicity

1985 ◽  
Vol 13 (4) ◽  
pp. 261-266
Author(s):  
P.P. Monro ◽  
D.P. Knight ◽  
W.S. Pringle ◽  
D.M. Fyfe ◽  
J.R. Shearer
Keyword(s):  
Chorioallantoic Membrane ◽  
In Vitro Techniques ◽  
Implant Materials ◽  
Metal Foils ◽  
Complex Interactions ◽  
Cobalt Nickel ◽  
Histological Criteria ◽  
Fluid Environment

The toxicity of implant materials requires investigation prior to clinical use. We have developed a method where materials are directly applied to the chorioallantoic membrane (CAM) of 9-day-old chick embryos and toxicity is assessed using histological criteria. We evaluated the method using metal foils. The number and organisation of fibroblasts seemed to be the most useful criteria for assessing metal toxicity. Differences were greatest after 10 days of culture on the CAM. The method is sensitive enough to enable us to discriminate between the less toxic aluminium and titanium and the highly toxic cobalt, nickel and tungsten. The proposed method has advantages over in vitro techniques which provide an abnormal fluid environment and in which the more complex interactions that are possible between implant materials and tissue in vivo cannot be modelled.

Carbonized Wood Decorated with Cobalt‐Nickel Binary Nanoparticles as a Low‐Cost and Efficient Electrode for Water Splitting

2021 ◽  
pp. 2010951
Author(s):  
Wentao Gan ◽  
Lianping Wu ◽  
Yaoxing Wang ◽  
He Gao ◽  
Likun Gao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Low Cost ◽  
Cobalt Nickel ◽  
Carbonized Wood ◽  
Binary Nanoparticles
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