barcode generator vb.net source code SOLID MATERIALS 32.10 in Software

Paint EAN-13 in Software SOLID MATERIALS 32.10

SOLID MATERIALS 32.10
EAN / UCC - 13 Reader In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Encoding GS1 - 13 In None
Using Barcode generator for Software Control to generate, create EAN13 image in Software applications.
PERFORMANCE OF ENGINEERING MATERIALS
EAN-13 Supplement 5 Reader In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
GTIN - 13 Encoder In C#.NET
Using Barcode encoder for Visual Studio .NET Control to generate, create EAN13 image in VS .NET applications.
FIGURE 32.5 Condensation polymerization of phenol and formaldehyde into bakelite.
Creating EAN-13 Supplement 5 In .NET
Using Barcode creator for ASP.NET Control to generate, create GTIN - 13 image in ASP.NET applications.
UPC - 13 Creator In .NET Framework
Using Barcode maker for .NET Control to generate, create EAN-13 image in Visual Studio .NET applications.
32.3.4 Crystalline Solids Crystalline solids are by far the most frequently used ones on the basis of mechanical properties or load-carrying capacity. Moreover, of all the crystalline solids, metals are the most important. A crystal (or crystalline solid) is an orderly array of atoms having a repeating linear pattern in three dimensions. The atoms are represented as spheres of radius r. A space lattice is the three-dimensional network of straight lines that connects the centers of the atoms along three axes. The intersections of the lines are lattice points, and they designate the locations of the atoms. Although the atoms vibrate about their centers, they occupy the fixed positions of the lattice points. Figure 32.6 is a sketch of a space lattice, with the circles representing the centers of the atoms. A space lattice has two important characteristics: (1) The space-lattice network divides space into equal-sized prisms whose faces contact one another in such a way that no void spaces are present, and (2) every lattice point of a space lattice has identical surroundings. The individual prisms that make up a space lattice are called unit cells. Thus a unit cell is the smallest group of atoms which, when repeated in all three directions, make up the space lattice, as illustrated by the dark-lined parallelepiped in Fig. 32.6.
Generating UPC - 13 In Visual Basic .NET
Using Barcode printer for Visual Studio .NET Control to generate, create EAN13 image in .NET applications.
Code128 Printer In None
Using Barcode drawer for Software Control to generate, create ANSI/AIM Code 128 image in Software applications.
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website.
Bar Code Creation In None
Using Barcode drawer for Software Control to generate, create barcode image in Software applications.
Painting EAN / UCC - 13 In None
Using Barcode printer for Software Control to generate, create EAN 13 image in Software applications.
SOLID MATERIALS 32.11
EAN / UCC - 14 Creator In None
Using Barcode drawer for Software Control to generate, create EAN128 image in Software applications.
ANSI/AIM Code 39 Drawer In None
Using Barcode maker for Software Control to generate, create USS Code 39 image in Software applications.
SOLID MATERIALS
RM4SCC Creation In None
Using Barcode printer for Software Control to generate, create Royal Mail Barcode image in Software applications.
Barcode Scanner In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
FIGURE 32.6 A space lattice. (a) A unit cell is marked by the heavy lines. Black circles are on the front face; horizontal shading on the top face; vertical shading on the right side face; hidden circles are white. (b) An isolated unit cell showing dimensions a, b, and c and angles , , and .
Make ANSI/AIM Code 39 In .NET
Using Barcode drawer for .NET Control to generate, create Code 39 Extended image in .NET applications.
GS1 - 13 Decoder In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
Only 14 different space lattices and 7 different systems of axes are possible. Most of the metals belong to three of the space-lattice types: face-centered cubic, bodycentered cubic, and hexagonal close-packed. They are listed in Table 32.1, along with four metals that have a rhombohedral and two that have orthorhombic structures.
Painting Barcode In Java
Using Barcode printer for Java Control to generate, create barcode image in Java applications.
Bar Code Generation In Java
Using Barcode creation for Android Control to generate, create barcode image in Android applications.
TABLE 32.1 Lattice Structure of Metal Crystals
Make DataMatrix In None
Using Barcode encoder for Word Control to generate, create ECC200 image in Word applications.
Paint Code 128 In Java
Using Barcode creation for Java Control to generate, create Code 128 Code Set C image in Java applications.
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website.
SOLID MATERIALS 32.12
PERFORMANCE OF ENGINEERING MATERIALS
The crystalline structure is not restricted to metallic bonding; ionic and covalent bonding are also common. Metallic-bonded crystals are very ductile because their valence electrons are not associated with specific pairs of ions. 32.3.5 Face-Centered Cubic Most of the common metals (see Table 32.1) have face-centered cubic structures. Figure 32.7 shows the arrangement of the atoms, represented by spheres, in the facecentered cubic (FCC) structure as well as that fraction or portion of each atom associated with an individual unit cell. Each atom in the FCC structure has 12 contacting atoms. The number of contacting atoms (or nearest neighbors) is called the coordination number. The FCC structure is referred to as a dense or closely packed structure. A quantitative measure of how efficiently the atoms are packed in a structure is the atomic packing factor (APF), which is the ratio of the volume of the atoms in a cell to the total volume of the unit cell. The APF for the FCC structure is 0.74. This means that 26 percent of the FCC unit cell is void space. 32.3.6 Body-Centered Cubic Many of the stronger metals (Cr, Fe, Mo, W) have body-centered cubic (BCC) lattice structures, whereas the softer, more ductile metals (Ag, Al, Au, Cu, Ni) have the FCC structure (see Table 32.1). Figure 32.8 shows the arrangement of atoms in the BCC structure. There are two atoms per unit cell: one in the center (body center) and 1 8 in each of the eight corners. As can be seen in Fig. 32.8, each atom is contacted by eight other atoms, and so its coordination number is 8. The atomic packing factor for the BCC structure is 0.68, which is a little lower than that for the FCC structure. The Miller indices are used to designate specific crystallographic planes with respect to the axes of the unit cell. They do not fix the position in terms of distance from the origin; thus, parallel planes have the same designation. The Miller indices are determined from the three intercepts that the plane makes with the three axes of the crystal. Actually it is the reciprocal of the distances between the intercepts with
FIGURE 32.7 Unit cell of face-centered cubic structure. (a) The unit cell has 8 corners with 1 8 atom at each plus 6 faces with 1 2 atom, for a total of 4 atoms per unit cell; (b) one half of the front face showing the relationship between the lattice parameter a and the atomic radius r.
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website.
Copyright © OnBarcode.com . All rights reserved.