Boron Nitride Nanomaterials Boron Nitride Nanomaterials Properties, Fabrication, and Applications Ben McLean Alister J. Page Published by Jenny Stanford Publishing Pte. Ltd. 101 Thomson Road #06-01, United Square Singapore 307591 Email: [email protected] Web: www.jennystanford.com British Library Cataloguing-in-Publication Data A catalogue record for this book is available from the British Library. Boron Nitride Nanomaterials: Properties, Fabrication, and Applications Copyright © 2023 Jenny Stanford Publishing Pte. Ltd. All rights reserved. This book, or parts thereof, may not be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the publisher. ISBN 978-981-4968-23-2 (Hardcover) ISBN 978-1-003-31448-6 (eBook) To Caitlan, Mardi, Sidney and Molly Contents Preface xi 1. Introduction to Boron Nitride Nanomaterials 1 1.1 Introduction 1 1.2 Cubic Boron Nitride 3 1.3 Hexagonal Boron Nitride 3 2. 1P.r4o peBrtoieros no fN BitNri dNea Nnoamnoattuebreiasl s 151 2.1 Introduction 11 2.2 Mechanical Properties 11 2.2.1 Mechanical Properties of c-BN 13 2.2.2 Mechanical Properties of h-BN 14 2.2.3 Mechanical Properties of BNNTs 17 2.3 Thermal Properties 19 2.3.1 Thermal Properties of c-BN 21 2.3.2 Thermal Properties of h-BN 21 2.3.3 Thermal Properties of BNNTs 23 2.4 Optical Properties 25 2.4.1 Optical Properties of c-BN 26 2.4.2 Optical Properties of h-BN 30 2.4.3 Optical Properties of BNNTs 35 2.5 Electronic Properties 39 2.5.1 Electronic Properties of c-BN 40 2.5.2 Electronic Properties of h-BN 42 2.5.3 Electronic Properties of BNNTs 44 viii Contents 3. Fabrication of BN Nanomaterials 67 3.1 Introduction 67 3.2 Fabrication of c-BN 67 3.2.1 Conversion of h-BN to c-BN 68 3.2.2 Ion Bombardment 69 3.2.3 Sputtering 72 3.2.4 Plasma-Assisted Chemical Vapor Deposition 73 3.2.5 c-BN Growth Mechanism 78 3.3 Fabrication of Hexagonal Boron Nitride 81 3.3.1 Chemical Vapor Deposition 81 3.3.2 h-BN Growth Mechanism 93 3.3.3 Exfoliation 101 3.3.4 Sputtering 105 3.3.5 Beam Epitaxy 106 3.4 Fabrication of Boron Nitride Nanotubes 109 3.4.1 Arc Discharge 109 3.4.2 Laser Ablation 113 3.4.3 Substitution Reactions 115 3.4.4 Ball Milling 116 3.4.5 Chemical Vapor Deposition 118 3.4.6 BNNT Growth Mechanism 125 4. Applic3a.t4i.o7n s oTfh BeoNr eNtaicnaol mBNatNeTri aGlrso wth Mechanism 112687 4.1 Introduction 167 4.2 Applications of c-BN 167 4.2.1 c-BN as an Abrasive 168 4.2.2 c-BN in Electronics 170 4.3 Applications of h-BN 171 4.3.1 h-BN in Electronics 171 4.3.2 h-BN in Thermal Applications 173 4.3.3 h-BN in Mechanical Applications 175 Contents ix 4.4 Applications of BNNTs 177 4.4.1 BNNTs in Mechanical Applications 177 4.4.2 BNNTs in Thermal Applications 179 4.4.3 BNNTs in Electronics 180 4.4.4 BNNTs in Biological Applications 182 A cronym Li4s.t4 .5 BNNTs in Sensing Applications 185 Index 205 207