PREFACE
Porous materials are a class of functional-structural materials with the opti- mal index of physical and mechanical properties, thanks to their porous structure. This book systematically introduces the basic concept behind these materials, as well as their major types, characteristics, applications, and main parameters. In addition, it presents various methods that can be used to process porous metals, porous ceramics, and polymer foams (foamed plastics) in accordance with their respective categories.
The concept of porous materials has been known for a number of years, but its radiation is far less successful than that of other materials. By the end of the 20th century, studies on porous materials have made a number of impor- tant discoveries. Based on this background, we spent a good deal of time and energy on collecting relevant literatures, combining with our own accumu- lated work experience, to write the Chinese version of the book, Introduction to Porous Materials, published in 2004 by Tsinghua University Press. This book focuses on production methods and applications of porous materials, considering that a classic work about porous materials, Cellular Solids: Struc- ture and Properties,¡± by L. J. Gibson and M. F. Ashby, has made a great contribution to expounding the structure and properties of porous solids. This is aimed at providing more information to scientific researchers and engineering or technical personnel who interact with porous materials (including the present authors themselves, of course). The formation and the publication of Introduction to Porous Materials were quite hasty at that time, with some immature viewpoints. In addition, at that time, there were only a few researchers in China studying porous materials. However, the results of our previous effort (including its reception) far exceeded our expectations, and that development further encouraged our future work. In turn, the publication of this book may play a part in promoting the devel- opment in China of the porous material field, as well as research in relevant or potential relevant fields. Because we have seen that research into porous materials has been growing rapidly in recent years in China, and the number of the scientific research institutes, universities, and companies involved in this area also have increased rapidly.
In order not to let down the readers, the publisher and the author jointly determined to revise the original book for a second edition, published in Chinese, to better meet the needs of the wider readership. In the second edition published in 2012, we corrected some errors and inappropriate con-tent that appeared in the first edition, and we added relevant new content reflecting the research progress made over the previous decade. In addition, we readjusted the layout of the book to give it a scientific and reasonable arrangement; in particular, we devoted a lot of time to revising chapters 2, 3, and 4.
Learning of Elsevier¡¯s interest in the topic of this book and considering the international demand for it, we comprehensively rewrote and rearranged the book again for a third edition. In so doing, we expanded on the relevant contents with an emphasis on supplementing the information about the processing, applications, and characterization of porous materials.
In the process of writing this book, we referred to the relevant papers and works published in the last 40 years, and especially those from the last 20 years, and made good use of them. Here, we would like to express our heartfelt thanks to all the authors of these documents. However, we should note that due to space and time limitations, we had to leave out a good many worthy books, papers, and articles, and we regret this deeply. Certainly, we also should acknowledge the assistance of many of our col-leagues in the field of porous materials, and our friends that have helped and supported us greatly. In the process of writing and publishing this book,
P. Liu provided excellent assistance, and C. Y. Yang and Y. J. Guo worked hard to collate the references and draw the figures for this book. The com-bined effort of all these fine people have allowed this project to reach a suc-cessful conclusion.
P.S. Liu, G.F. Chen October 2013
