scholarly journals III. The influence of stress and strain on the physical properties of matter. Part III. Magnetic induction

1887 ◽  
Vol 42 (251-257) ◽  
pp. 224-230 ◽  
Keyword(s):  
Physical Properties ◽  
Magnetic Induction ◽  
Central Portion ◽  
Secondary Coil ◽  
Stress And Strain ◽  
Iron Nickel ◽  
Considerable Length ◽  
The Wire ◽  
Effects Of Stress

The author lays before the Society the results of experiments extending over a period of ten years on the effects of stress and strain on the magnetic permeabilities of iron, nickel, and cobalt. Two methods were employed. In one the metal to be tested—usually in the form of wire—was placed with its axis coincident with that of a magnetising solenoid, in most cases of considerable length as compared with the diameter of the wire; round the central portion of the solenoid was wrapped a secondary coil .

III. The influence of stress and strain on the physical properties of matter. Part III. Magnetic induction ( continued ). The internal friction of iron, nickel, and cobalt, studied by means of magnetic cycles of very minute range

1890 ◽  
Vol 47 (286-291) ◽  
pp. 13-14
Keyword(s):  
Internal Friction ◽  
Physical Properties ◽  
Magnetic Induction ◽  
Stress And Strain ◽  
Torsional Oscillations ◽  
Dissipation Of Energy ◽  
Ballistic Method ◽  
Iron Nickel ◽  
Magnetic Cycles ◽  
Molecular Friction

The author has already studied the internal friction of metals by the method of torsional oscillations, and deduced certain simple laws relating thereto. One of the principal objects of the present enquiry was to ascertain how far the dissipation of energy resulting from statical molecular friction which occurs in magnetic cycles of very minute range would be amenable to the laws of dissipation of energy occurring in torsional cycles. The “ballistic” method of observation has been employed, the arrangements being exceedingly sensitive so as to admit of the use of very feeble magnetising forces.

scholarly journals IV. The influence of stress and strain on the physical properties of matter. Part I. Moduli of elasticity─ continued . The viscosity of metals

1885 ◽  
Vol 38 (235-238) ◽  
pp. 42-45
Keyword(s):  
Physical Properties ◽  
Stress And Strain ◽  
Short Account ◽  
William Thomson ◽  
The Wire ◽  
Moduli Of Elasticity

After a short account of the researches of Sir William Thomson and Professor G. Wiedemann, on the loss of energy of a wire when vibrating torsionally, the author proceeds to describe his own experi­ments on the same subject. The wire under examination was clamped at one end into a stout brass block, which was secured to the extremity of a strong iron bracket projecting from a wall.

scholarly journals VI. The influence of stress and strain on the physical properties of matter. Part I. Elasticity— continued . The effect of magnetisation on the elasticity and the internal friction of metals

1886 ◽  
Vol 40 (242-245) ◽  
pp. 447-449 ◽  
Keyword(s):  
Internal Friction ◽  
Physical Properties ◽  
Electric Current ◽  
Stress And Strain ◽  
The Wire ◽  
Permanent Rotation ◽  
A Current

The principal object of this investigation was to test the soundness of the view advanced by Professor G. Wiedemann respecting the cause of the internal friction of a torsionally oscillating wire. According to this view the internal friction is mainly due to permanent rotation to-and-fro of the molecules about their axes; it seemed probable, therefore, that experiments on the effects of magnetising a wire either longitudinally with a helix or circularly by passing a current through it would aid in elucidating the matter. In the experiments on the effects of longitudinal magnetisation arrangements were made so that the heat generated in the magnetising helix should not reach the wire, whilst the effect of the heat generated in the wire when an electric current was passed through it was eliminated in a manner which is fully described in the paper.

scholarly journals I. The influence of stress and strain on the physical properties of matter.—Part I. Elasticity (continued).—The effect of magnetisation on the elasticity and the internal friction of metals

1888 ◽  
Vol 179 ◽  
pp. 1-26 ◽  
Keyword(s):  
Internal Friction ◽  
Physical Properties ◽  
Main Part ◽  
Stress And Strain ◽  
Heating Effect ◽  
Vibrating Wire ◽  
The Wire

According to Professor G. Wiedemann, the main part of the internal friction which occurs in a torsionally vibrating wire is due to the rotation of the molecules about their axes, first to this side and then to that, as the wire vibrates to and fro. With this view the author’s own experiments on the internal friction of metals had been so far in accordance that he wished still further to test the matter by investigating the effect of magnetisation on the internal friction. The author has already made some experiments on the effect of magnetisation on the torsional elasticity of metals, but the results of these experiments did not entirely satisfy him, inasmuch as the means of eliminating the heating effect of the magnetising solenoid were imperfect. It is true that the observed changes of temperature wrought by the solenoid were comparatively small, but so also was the apparent alteration of torsional elasticity due to magnetisation; and it seemed, therefore, advisable to reopen the inquiry, and to devise more perfect apparatus, whereby the heating effect above mentioned might be entirely done away with.

NILO ALLOY 36

Alloy Digest ◽  
1987 ◽  
Vol 36 (8) ◽  
Keyword(s):  
Thermal Expansion ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Constant Coefficient ◽  
Coefficient Of Thermal Expansion ◽  
Heat Treating ◽  
Temperature Performance ◽  
Iron Nickel

Abstract NILO alloy 36 is a binary iron-nickel alloy having a very low and essentially constant coefficient of thermal expansion at atmospheric temperatures. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-79. Producer or source: Inco Alloys International Inc..

ISO-ELASTIC

Alloy Digest ◽  
1957 ◽  
Vol 6 (8) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Low Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Temperature Coefficient ◽  
Nickel Alloy ◽  
Modulus Of Elasticity ◽  
Heat Treating ◽  
Precision Instrument ◽  
Iron Nickel

Abstract ISO-ELASTIC is an iron-nickel alloy having low temperature coefficient of the modulus of elasticity. It is suitable for precision instrument springs. 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, and machining. Filing Code: Fe-14. Producer or source: John Chatillon & Sons.

NAS 335X

Alloy Digest ◽  
2013 ◽  
Vol 62 (5) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Molybdenum Alloy ◽  
Nickel Chromium ◽  
Iron Nickel

Abstract NAS 335X (UNS N08020) is an iron-nickel-chromium-molybdenum alloy with corrosion resistance for both reducing and oxidizing environments. 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: SS-1146. Producer or source: Nippon Yakin Kogyo Company Ltd.

HAYNES 556 ALLOY FILLER METAL

Alloy Digest ◽  
2000 ◽  
Vol 49 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Oxidation Resistance ◽  
Filler Metal ◽  
Cobalt Alloy ◽  
Nickel Chromium ◽  
Iron Nickel ◽  
Haynes Alloy ◽  
Alloy Filler

Abstract Haynes alloy 556 filler metal is an iron-nickel-chromium-cobalt alloy that combines effective resistance to sulfidizing, carburizing, and chlorine-bearing environments with excellent strength and oxidation resistance at high temperatures. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as joining. Filing Code: SS-782. Producer or source: Haynes International Inc.

NCF 3015 ALLOY

Alloy Digest ◽  
1999 ◽  
Vol 48 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Nickel Alloy ◽  
Heat Treating ◽  
Engine Valve ◽  
Good Strength ◽  
Iron Nickel

Abstract NCF 3015 alloy is an iron nickel alloy that is precipitation hardened and has good strength and corrosion resistance to 760 C (1400 F). It is commonly used for engine valve applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on forming, heat treating, and machining. Filing Code: SS-765. Producer or source: Carpenter.

Analysis of the Influence and Number of Turns on the Smartphone Wireless Charger on the Output Power of the Wireless Charger

2020 ◽  
Vol 10 (1) ◽  
pp. 20-25
Author(s):  
Donny Firmansyah
Keyword(s):  
Output Power ◽  
Magnetic Induction ◽  
Secondary Coil ◽  
Wireless Charging ◽  
Transmitted Power ◽  
Primary Coil ◽  
Power Test ◽  
Transmission Distance ◽  
Coil Diameter

Charging the smartphone battery can be done via powerbank or default charger from the smartphone still using the cable for charging the electricity. Charging using a cable certainly limits the use of the smartphone when it is charging. Smartphone users can not be far from the electric socket which of course is troublesome if this happens in the middle of a room that has a few electrical sockets. To solve this problem, now many wireless charging smartphones or smartphones have been developed wireless charger. Behind the benefits obtained from a wireless charger, it also has disadvantages, namely the transmission distance is short, even there is no distance and the transmitted power is unstable. Wireless chargers are based on the principle of magnetic induction in which electricity is transferred between two objects through a coil. Wireless charger consists of the primary coil as a charger (usually in the form of a thin board or cylinder), and the secondary coil is located on the back of the cellphone. Based on the results, the output power is obtained. The largest wireless charger is 0.027W with a coil diameter of 8cm in all the number of primary coils, namely 40 turns, 50 turns, and 60 turns at a primary and secondary coil distance of 0cm to 1cm. The farthest distance from the wireless charger output power test is 6cm as well as the 8cm coil diameter for all the number of primary coil turns, namely 40 turns, 50 turns, and 60 turns.

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