Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-30T19:15:30.039Z Has data issue: false hasContentIssue false
  • English
  • Français

Fine Particles: Science and Technology

Published online by Cambridge University Press:  29 November 2013

Egon Matijević
Get access

Extract

Some readers may wonder about the reasons for having two issues focus on fine particles. Hopefully, this introduction and the articles to follow will offer the necessary justification.

It is fully expected by everybody, professional or laie, that the properties of matter will change if its chemical composition is altered. It is less frequently recognized that many characteristics of materials can be dramatically affected by varying dimensions, yet countless examples in everyday life clearly demonstrate such phenomena. Consider water in droplet form. Driving in rain creates little problem, providing the car has working windshield wipers. In contrast fog, which consists of droplets of much smaller size, represents one of the major hazards in transportation. Obviously, the optical properties of the same matter have greatly altered with diminution. In another example, it is well known that finely dispersed carbon is an excellent adsorbent, a property used in gas masks and in many industries as a purifying agent. Large-sized lumps of such carbon would be useless in these applications.

The effect of particle size on properties of materials can be readily understood from a simple consideration. The total energy of any System, (Etot), consists of two contributions, the internai energy, Ei, and the surface energy, Ei.

Type
Fine Particles Part I
Information
MRS Bulletin , Volume 14 , Issue 12 , December 1989 , pp. 18 - 22
Copyright
Copyright © Materials Research Society 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Matijević, E., Ann. Rev. Materials Sci. 15 (1985) p. 483.CrossRefGoogle Scholar
2.Matijević, E., Langmuir 2 (1986) p. 12.CrossRefGoogle Scholar
3.Matijević, E., Pure Appl. Chem. 60 (1988) p. 1479.CrossRefGoogle Scholar
4.Sugimoto, T., Adv. Colloid Interface Sci. 28 (1987) p. 65.CrossRefGoogle Scholar
5.Haruta, M. and Delmon, B., J. Chim. Phys. 83 (1986) p. 859.CrossRefGoogle Scholar
6.Delgado, A. and Matijević, E., Particle Charact. & Particle Systems submitted.Google Scholar
7.Sapieszko, R.S., Patel, R.C., and Matijević, E., J. Phys. Chem. 81 (1977) p. 1061.CrossRefGoogle Scholar
8.Bell, A. and Matijević, E., J. Inorg. Nucl. Chem. 37 (1975) p. 907.CrossRefGoogle Scholar
9.Hsu, W.P., Rönnquist, L., and Matijević, E., Langmuir 4 (1988) p. 31.CrossRefGoogle Scholar
10.Aiken, B., Hsu, W.P., and Matijević, E., J. Amer. Ceramic Soc. 71 (1988) p. 845.CrossRefGoogle Scholar
11.Matijević, E. and Scheiner, P., J. Colloid Interface Sci. 63 (1978) p. 509.CrossRefGoogle Scholar
12.Ribot, F., Kratohvil, S., and Matijević, E., J. Mater. Res., 4 (1989) p. 1123.CrossRefGoogle Scholar
13.Hsu, W.P. and Matijević, E., Appl. Optics 24 (1985) p. 1623.CrossRefGoogle Scholar
14.Sprycha, R. and Matijević, E., Langtnuir 5 (1989) p. 479.CrossRefGoogle Scholar
15.Matijević, E., Poskanzer, A.M., and Zuman, P., Plating 62 (1975) p. 958.Google Scholar