Based on Hume-Rothery's conditions, which of the following systems would be expected to display unlimited solid solu- bility? Explain. (a) Au-Ag; (b) Al-Cu; (c) Al-Au; (d) U-W; (e) Mo-Ta; (f) Nb-W; (g) Mg-Zn; and (h) Mg-Cd.

Based on Hume-Rothery's conditions, which of the following systems would be expected to display unlimited solid solu- bility? Explain. (a) Au-Ag; (b) Al-Cu; (c) Al-Au; (d) U-W; (e) Mo-Ta; (f) Nb-W; (g) Mg-Zn; and (h) Mg-Cd.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

At what temperature does the first liquid phase form at 90% Ni? T(°C) 1600 1500 1400 1300 1200 1100 1000, L (liquid) L+α solidus liquidus 80 100 20 40 60 80 wt% Ni
Calculate the weight fraction for phases at point B? what are those phases? Is there any eutectic rection? How many phases are present in this diagram? Cu-Ni system T(°C) TA 1300 -L (liquid): A tie ļine liquidus L +a Тв EB solidus (solid) 1200 TD ID 20 3032 35: 4043 50 Ca wt% Ni
For two hypotetical materials which have limitless solubility for both in the “liquid” and “solid” states in each other, the following data are listed. Melting Temperatures of material A and B are Tm,A and Tm,B respectively, Liquidus and Solidus curves are circular arcs. a- Draw the related “Phase Diagram” of Material A and Material B showing the data given and calculated. b- Calculate/Determine the compositions of phases at T2 , explain the procedure. c- Calculate/Determine the “percentages” of “phases” of Alloy,2 at T2 , explain the procedure. Given: -Tm,A, Celcius =300 -Tm,B, Celcius =800 -T1, Celcius =600 -B percentage of Liquid phase at T1 =25 -B percentage of Solid phase at T1 =70 -B percentage of Alloy 2. =50 -T2, Celcius =650 -B percentage of Liquid phase of Alloy 2 at T2 = to be calculated -B percentage of Solid phase of Alloy 2 at T2 = to be calculated
From the given set of Miller Indices (given below) match each index with corresponding shaded planes according to number. [e.g. 1 match with (ī o 1)] (TOT) (TIT) (To1) (2 Z 2) (002) (3 3 2)
The triple point of hydrogen occurs at a temperature of13.8 K and a pressure of 0.069 atm.(a) What is the vapor pressure of solid hydrogen at 13.8 K?(b) Suppose a sample of solid hydrogen is held under an external pressure of 0.030 atm and heated from 5 to 300 K. What phase change(s), if any, will occur?
Consider Cu - Ag Phase diagram below: 1200 A -Liquidus 1000 Liquid -Solidus 779°C (TE) 800 Temperature (°C) 600 400 a C 200 0 B 8.0 (Cag) Solvus a +L a + ß E 71.9 (CE) B+L 91.2 (CBE) B H 1 1 1 1 1 { ( L 20 40 60 80 100 (Cu) Composition (wt% Ag) (Ag) Consider 71.9% Ag-28.1% Cu, which is cooled below 779°C. What is the composition of the phases present just below 779°C and give the amount of beta phase present
BINARY PHASE DIAGRAMS Please only answer parts d and e as the rest have been solved. Show full detailed explanation to answers with diagrams if necessary a)(i) What is the melting point of pure Mg?(ii) What is the maximum solubility of Mg in Pb and at what temperaturedoes this occur? (b) A 50 wt.% Pb-50wt% Mg alloy is slowly cooled from 700 °C to 400 °C.(i) At what temperature does the first solid phase form?(ii) What is the composition of this solid phase?(iii) At what temperature does all the liquid solidify?(iv) What is the composition of the last remaining liquid phase?(v) What is the freezing range? (c) What is the mass fraction of solid and liquid of a 60 wt.% Mg alloy at atemperature of 500 °C.(d) Draw and label the microstructure of an 80 wt.% Mg alloy at 600 °C.(e) A Mg-Pb alloy of mass 5.5 kg has a composition just slightly below thesolubility limit of 200 °C.(i) What mass of lead is in the alloy?(ii) If the alloy is heated to 350 °C how much more lead can be dissolvedin…
What is the average molar mass of a gas containing the following by mass % composition: CO2 = 10 O2 = 3 CO = 3 H2O = 6 and N2 Please show your complete solution and write clearly. Thank you.
Question 1Helium gas is contained in a cylinder by a gas-tight piston which can beassumed to move without friction. The gas occupies a volume of 1 x 10^-3m^3 temperature of 300K and a pressure of 1 x 10^5 Pa.(a) Calculate :i.the number of helium atoms in the container,ii.the total KE of the helium atoms(b) Energy is now supplied to the gas in such a way that the gas expands andthe temperature remains constant at 300K. State, and explain what changes, if any, will have occurred in the following quantities :i. The internal energy of the gasii. The root-mean-square speed of the helium atomsiii. The density of the gas.(Given : Boltzmann's constant = 1.38 x 10^23 JK^-1)
c.a car travelling along a road is making a turn where the' radiu olg curvatiure is ré 2t² where t is in seconds."an observer at the centero olg the cuowe turning åt a hate olg"0.5t rad in seconds.Find the" equation dy the velocity "ard aceeleration ewhen 2 seconds have Spased anuer: l:31 m fecuses on the cary where t is magnituide and j 20.40 m
The slope of the melting curve of methane (CH4) is given by dP dT = (0.08446 bar/K1.85). 70.85 (yes, the exponents are all correct!) from the triple point to arbitrary temperatures. (a) Using the fact that the temperature and pressure of the triple point are 90.68 K and 0.1174 bars, calculate the melting pressure (in bars) of methane at 95 K. (Hint: You will need to integrate to obtain the correct pressure!) (b) For this same system, at what temperature would the melting point occur when the pressure is 24.8 bars?
Physical Applications of 1st Order DE Radium decomposes at a rate proportional to the quantity of radium present. Suppose that it is found that in 25 years approximately 1.1 % of a certain quantity of radium has decomposed. Determine approximately how long it will take for one-half the original amount of radium to decompose.