Engineering Materials vol 2 Part 3 pot

... Conservation of volume gives 4 3 4 3 4 3 3 3 1 3 2 3 πππ rrr =+ . (5 .30 ) Combining eqns (5 .29 ) and (5 .30 ) gives ∆A = 4 1 3 2 32 3 1 2 2 2 πγ [( ) ( )]. / rr rr+−+ (5 .31 ) For r 1 /r 2 in the range ... K, we find that W f = 1 .22 kJ kg −1 (or 22 J mol −1 ). 1 kg of water at 27 2 K thus has 1 .22 kJ of free work avail- able to make it turn into ice. The r...

Ngày tải lên: 11/08/2014, 02:22

... 0 .30 0.80 0.50 0 .20 0.55 B 0.40 0.60 1 .20 0 .30 1.50 C 0 .36 0.70 1.50 0 .25 1.50 D 0.40 0.60 1 .20 0.15 1.50 E 0.41 0.85 0.50 0 .25 0.55 F 0.40 0.65 0.75 0 .25 0.85 G 0.40 0.60 0.65 0.55 2. 55 116 Engineering ... H. Jones, Engineering Materials I, 2nd edition, Butterworth-Heinemann, 1996, Chapters 21 , 22 , 23 and 24 . Further reading K. J. Pascoe, An Introduction to the Proper...

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... coefficient (20 °C) T g (K) temperature (W m − 1 K − 1 )(MK − 1 ) (MPa m 1 /2 ) T s (K) 1 2 270 35 5 22 50 0 .35 160–190 2 5 30 0 39 0 21 00 0. 52 150 30 0 3. 5 25 3 310 1900 0 .2 100 30 0 –– 39 5 1050 0 .25 70–100 2 ... 70–100 2 37 0 37 0 135 0–1500 0.1–0.15 70–100 2. 4 35 0 37 0 – 0.15 50–70 1.6 37 8 400 1500 0 .2 54– 72 3 5 34 0 35 0– 420 1900 0 .2 0 .25 80...

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... 35 Polyacrylonitrile 22 1 Polybutadiene 22 3, 22 4 Polychloroprene 22 3, 22 4 Polyester 22 3, 22 4 Polyethylene 22 2, 22 4 Polyethyleneteraphthalate 22 1 Polyisoprene 21 6, 21 7, 24 7 Polymers 21 9 et seq. case studies in 30 8 production, ... joining 25 4 et seq. properties 23 8 et seq. structure 22 8 et seq. Polymethylmethacrylate 22 2, 22 4, 24 6, 3 12 Polymorph...

Ngày tải lên: 11/08/2014, 02:22

... 2. 5 -3 .2 3 .2 3 .2 3. 0 2. 7 2. 7 2. 6 2. 5 2. 2 -3. 0 2. 6 -2. 9 2. 4 -2. 5 1.4 -2. 2 2. 2 2. 3 2. 0 1.85-1.9 1.74-1.88 1.55-1.95 1.8 1 .3- 1.6 1.5-1.6 1 .l-1.5 1.4 1 .l-1.4 1 .l-1 .3 1 .2- 1 .3 ... A 120 3 Alkali halides Magnesia, MgO 22 .7 21 .4 13. 4-1 9.6 19 .3 18.9 14.0-1 7.0 16.6-1 6.9 10.0-1 3. 7 1 1 .O- 12. 5 10.7-1 1 .3 10...

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... 85 20 -80 34 -70 55 55 11-55 45-48 7-45 19 -36 26 -31 20 -30 20 -30 6 -20 1-10 0 .2- 1 0 1 - - - 100 20 0-400 40-70 30 0 60 35 -55 14-70 14-60 33 -36 58 37 30 20 4-1 0 20 0-400 ... 100- 627 40 24 0-400 160- 421 20 0 -35 0 100 -36 5 - 60 - - 22 0 50 80 -30 0 34 -27 6 60-1 10 30 -100 52- 90 - 40 - - - - - - - - - - - - - - -...

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... >1 OOO 133 6 1 23 4 933 21 73 31 10 505 16 83 1557 20 42 9 23 6 92 21 48 37 1 33 7 Ni cu Fe co Ti WC cermet Bo Zr Ta Nb U Mo W 600 25 24 7 c6 c5 ~~0.5 0 .2 very short ... Glass-ceramics 2. 7 >1700 = 120 =3 =3 -3 Hot-pressed silicon 3. 1 21 73 (D) 31 0 3. 1 16 =5 Hot-pressed silicon 3 .2 30 00 (D) 420 4 .3 60 s...

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... m-'] 0. 53 0 .35 Mild steel 1 7.8 1 20 7 High-strength steel Aluminium alloy 2. 7 69 1 93 0.66 0,19 22 0 ] 1. 32 up to 500 GFRP (chopped fibre, 1.8 15 75 0. 73 0 .21 moulding ... k = uY /2, when F, = ak = ao, /2 (25 .5) Combining this with eqn. (25 .3) , we have P F, - 2 (25 .6) This is just the empirical eqn. (25 .1) we started with, wi...

Ngày tải lên: 11/08/2014, 02:22

... 100 (140) 7.9 21 1 50 20 0 Mild steel 20 0 23 0 (26 0 30 0) 7.9 21 0 22 0 430 High-carbon steel 150 (20 0) 7.8 21 0 35 0–1600 650 20 00 Low-alloy steels 180 25 0 ( 23 0 33 0) 7.8 20 3 29 0–1600 420 20 00 High-alloy ... 860 180 24 0.1–0 .35 30 –40 890 130 22 0.1–0.17 20 –70 890 150 24 0.01–0.15 5 30 860 140 20 0 .25 1940 530 22 9 0.1–0 .2 50–80 1 920 610 6 8 0.4 6 93...

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... constitution. To start with, let’s look at pure tin. At 23 3 C we have single-phase liquid tin (Fig. 3. 4). At 23 1°C we have single-phase solid tin. At 23 2°C, the melting point of pure tin, we can either ... Now, if we look at an alloy of tin + 65% lead on the 32 Engineering Materials 2 Table 3. 1 Feature Cu–Ni Pb–Sn Cu–Zn (Fig. 3. 6a) (Fig. 3. 1) (Fig. 3. 6b) Melting poin...

Ngày tải lên: 11/08/2014, 02:22