Preparation and characterization of polyaniline with high electrical conductivity

2008 ◽  
Vol 20 (8) ◽  
pp. 689-695 ◽  
Author(s):  
Keqing Zhang ◽  
Xinli Jing
2007 ◽  
Vol 336-338 ◽  
pp. 2041-2043 ◽  
Author(s):  
Shang Feng Du ◽  
J. Liu ◽  
Yun Fa Chen

Gallium-doped zinc oxide nanopowders with high electrical conductivity were prepared by calcining the precursor synthesized from ZnSO4·7H2O, GaCl3 and NH4HCO3 by co-precipitation method. The obtained samples were characterized by FE-SEM, TEM, XRD, XPS and BET techniques. The precursor particles were in the shape of sheet-like with size about several hundred nanometers. The electrically conductive zinc oxide particles, in the shape of sphere-like, were about 10~40 nm with low agglomeration, and the specific surface area was 28.7 m2/g. XRD and XPS results showed that all the doped Ga exists as the substitution form of Ga• Zn in the ZnO system. The volume resistivity of the product was as lower as 4.5 :·cm.


Nanoscale ◽  
2018 ◽  
Vol 10 (41) ◽  
pp. 19443-19449 ◽  
Author(s):  
M. Sistani ◽  
M. S. Seifner ◽  
M. G. Bartmann ◽  
J. Smoliner ◽  
A. Lugstein ◽  
...  

Electrical characterization of Ge0.81Sn0.19 nanowires has been performed revealing high electrical conductivity and semiconductor behaviour when cooled to 10 K. The impact on slightly elevated temperatures on the device stability of this metastable material is described.


Alloy Digest ◽  
1988 ◽  
Vol 37 (1) ◽  

Abstract CDA C18700 is a copper-base alloy containing lead (nominally 1.0%). The lead is added to impart free-cutting properties to the metal. Although the lead lowers the electrical conductivity of CDA C18700 slightly below that of tough-pitch copper, it still has high electrical conductivity well within the limits needed for most current-carrying requirements. Typical uses comprise electrical motor and switch parts, electrical connectors and screw-machine parts requiring high conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-533. Producer or source: Copper and copper alloy mills.


Alloy Digest ◽  
1975 ◽  
Vol 24 (12) ◽  

Abstract Copper Alloy NO. 182 is an age-hardening type of alloy that combines relatively high electrical conductivity with good strength and hardness. It was formerly known as Chromium Copper and its applications include such uses as resistance-welding-machine electrodes, switch contacts and cable connectors. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fracture toughness and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-305. Producer or source: Copper and copper alloy mills.


Alloy Digest ◽  
1977 ◽  
Vol 26 (5) ◽  

Abstract Copper Alloy No. 815 is an age-hardenable cast copper-chromium alloy. It is characterized by high electrical and thermal conductivities combined with medium hardness and strength in the age-hardened condition. It is used for components requiring high electrical conductivity or high thermal conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-332. Producer or source: Copper alloy foundries.


Alloy Digest ◽  
2008 ◽  
Vol 57 (10) ◽  

Abstract Swissmetal alloys C97 and C98 attain high strength by aging after cold working. The alloys are free machining and maintain a high electrical conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: CU-759. Producer or source: Avins Industrial Products.


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