Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 4, Problem 7CQ
To determine
The condition when there is a spike in the specific heat of semi-crystalline polymers.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
All the following statements are true for ceramics except __________________.
Question 26 options:
Electrical conductivity of ceramics is generally lower than metals.
Most ceramics are lighter than metals but heavier than polymers.
The melting point of ceramics is lower than most metals.
Thermal expansion of ceramics are less than for metals.
13
Material Science and Engineering
9.5 The following thermal bimorph is made of Silicon with a thermal conductivity
k = 130 W/(m°C), Young's modulus E = 200 GPa, Poisson's ratio v = 0.27, and ther-
mal expansion coefficient a = 2.6 × 10-6/°C. It is 1 mm thick with fixed tempera-
tures of 60°C and 10°C, respectively, at the leftmost ends of its hot arm and cold
arm, as shown below. Suppose the bimorph has a uniform internal heat genera-
tion at 100 W/m³, and ignore the effects of convective heat transfer. (1) Determine
the steady-state temperature distribution in the thermal bimorph. (2) Determine
the thermally induced deformation and stresses in the bimorph if the two arms
are fixed on their left ends.
Hot arm
Thot = 60°C
Cold arm
Tcold = 10°C
All dimensions are in millimeters.
6.000-
3.000
2.000
2.000
200
12.000
5.000
3.000
Chapter 4 Solutions
Materials Science And Engineering Properties
Ch. 4 - Prob. 1CQCh. 4 - Prob. 2CQCh. 4 - Prob. 3CQCh. 4 - Prob. 4CQCh. 4 - Prob. 5CQCh. 4 - Prob. 6CQCh. 4 - Prob. 7CQCh. 4 - Prob. 8CQCh. 4 - Prob. 9CQCh. 4 - Prob. 10CQ
Ch. 4 - Prob. 11CQCh. 4 - Prob. 12CQCh. 4 - Prob. 13CQCh. 4 - Prob. 14CQCh. 4 - Prob. 15CQCh. 4 - Prob. 16CQCh. 4 - Prob. 17CQCh. 4 - Prob. 18CQCh. 4 - Prob. 19CQCh. 4 - Prob. 20CQCh. 4 - Prob. 21CQCh. 4 - Prob. 22CQCh. 4 - Prob. 23CQCh. 4 - Prob. 24CQCh. 4 - Prob. 25CQCh. 4 - Prob. 26CQCh. 4 - Prob. 27CQCh. 4 - Prob. 28CQCh. 4 - Prob. 29CQCh. 4 - Prob. 30CQCh. 4 - Prob. 31CQCh. 4 - Prob. 32CQCh. 4 - Prob. 33CQCh. 4 - Prob. 34CQCh. 4 - Prob. 35CQCh. 4 - Prob. 36CQCh. 4 - Prob. 37CQCh. 4 - Prob. 38CQCh. 4 - Prob. 39CQCh. 4 - Prob. 40CQCh. 4 - Prob. 41CQCh. 4 - Prob. 42CQCh. 4 - Prob. 43CQCh. 4 - Prob. 1ETSQCh. 4 - Prob. 2ETSQCh. 4 - Prob. 3ETSQCh. 4 - Prob. 4ETSQCh. 4 - Prob. 5ETSQCh. 4 - Prob. 6ETSQCh. 4 - Prob. 7ETSQCh. 4 - Prob. 1DRQCh. 4 - Prob. 4.1PCh. 4 - Prob. 4.2PCh. 4 - Prob. 4.3PCh. 4 - Prob. 4.4PCh. 4 - Prob. 4.5PCh. 4 - Prob. 4.6PCh. 4 - Prob. 4.7PCh. 4 - Prob. 4.8PCh. 4 - Prob. 4.9PCh. 4 - Prob. 4.10PCh. 4 - Prob. 4.11PCh. 4 - Prob. 4.12PCh. 4 - Prob. 4.13PCh. 4 - Prob. 4.14PCh. 4 - Prob. 4.15PCh. 4 - Prob. 4.16PCh. 4 - Prob. 4.17PCh. 4 - Prob. 4.18PCh. 4 - Prob. 4.19PCh. 4 - Prob. 4.20PCh. 4 - Prob. 4.21PCh. 4 - Prob. 4.22PCh. 4 - Prob. 4.23PCh. 4 - Prob. 4.24PCh. 4 - Prob. 4.25P
Knowledge Booster
Similar questions
- 6)arrow_forwardThe assembly consists of a brass shell (1) fully bonded to a ceramic core (2). The brass shell [E = 86 GPa, α= 18 × 10−6/°C] has an outside diameter of 33 mm and an inside diameter of 27 mm. The ceramic core [E = 320 GPa, α= 2.5 × 10−6/°C] has a diameter of 27 mm. At a temperature of 15°C, the assembly is unstressed. Assume L = 320 mm. Determine the largest temperature increase Δt that is acceptable for the assembly if the normal stress in the longitudinal direction of the brass shell must not exceed 65 MPa.arrow_forwardState two applications where single crystals are used as well as two applications of amorphous silicate glasses.arrow_forward
- In an engineering application, the material is a strip of iron with a fixed crystallographic structure subject to a tensile load during operation. The part failed (yielded) during operation and needs to be replaced with a component with better properties. You are told that two other iron strips had failed at yield stresses of 110 and 120 MPa, with grain sizes of 30 microns and 25 microns respectively. The current strip has a grain size of 20 microns. The diameter of the rod is 1 mm and the load applied is 100 N. What is the yield stress of the new part C and would you recommend it for operation? Select one: Oa. 133.5 MPa, yes O b. OC. Od Oe. 120.5 MPa, no 129.5, yes 140.5, no 123.5 MPa, yesarrow_forward8 Induction hardening and flame hardening are two heat treatment methods that can be used to increase wear resistance of a material's surface while keeping the inner core tough. Which of the following is true? (A) Induction hardening uses an electric current. (B) Flame hardening requires a longer quench time. (C) Induction hardening has a lower operating temperature. (D) Flame hardening results in smaller grains in its structure. jes (A) emsed anilisted (81) sig auc agniwash evilosque (0) grinore 2 (C)arrow_forwardIncreased temperature in many ceramics up to around 1000 °C leads to a decrease in thermal conductivity , true or falsearrow_forward
- Which magnetized material cannot be easily demagnetized? a. soft iron b. hard ironarrow_forwardCalculate the unit cell edge length for an 57 wt% Ag- 43 wt% Pd alloy. All of the palladium is in solid solution, and the crystal structure for this alloy is FCC. Room temperature densities for Ag and Pd are 10.49 g/cm3 and 12.02 g/cm3, respectively, and their respective atomic weights are 107.87 g/mol and 106.4 g/mol. Report your answer in nanometers.arrow_forward14) The phase/s in tempered martensite in a steel is/are: a) Body centered cubic Ferrite b) Monoclinic Fe3C c) Body centered Tetragonal martensite d) Both A and Barrow_forward
- 10)arrow_forwardThe assembly consists of a brass shell (1) fully bonded to a solid ceramic core (2). The brass shell [E = 115 GPa, a = 18.7 × 10-6/°C] has dout 50mm. and din = 35mm. The ceramic core [E = 290 GPa, α = 3.1 x 10-6/°C] has a diameter dout = 35mm. At a temperature of 15°C, the assembly is unstressed. AT = 60°C. Find the internal stress in the brass. = 200 mm Brass shell (1) (2) Ceramic corearrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Materials Science And Engineering PropertiesCivil EngineeringISBN:9781111988609Author:Charles GilmorePublisher:Cengage Learning
Materials Science And Engineering Properties
Civil Engineering
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Cengage Learning