The First International Cryogenic Materials Conference (ICMC) provided a new forum for the presentation of low-temperature materials research. The confer ence, held in conjunction with the 1975 Cryogenic Engineering Conference, provided materials research personnel with excellent exposure to current develop ments in the cryogenics field and beneficial interactions with designers of cryogenic systems. Because of the large response to a late call for papers, the enthusiasm and encouragement at the meeting, and the wide spectrum and high quality of papers, the Second International Cryogenic Materials Conference is being planned along with the 1977 Cryogenic Engineering Conference for Boulder, Colorado, in the summer of 1977. The success of the First International Cryogenic Materials Conference was certainly in large measure due to the excellent hospitality of our Canadian hosts, the Royal Military College of Canada and Queen's University in Kingston, Ontario. In particular, the efforts of A. C. Leonard and his staff ensured an excellent conference and a pleasant and memorable visit to Canada. The Cryogenic Engineering Conference Board was both generous and skillful in helping to initiate this new conference and their guidance and acceptance is gratefully acknowledged. The Cryogenic Engineering Conference program chairman, M. J. Hiza, greatly facilitated the interaction for the two conferences and provided valuable assistance in generat ing a workable program. The proceedings of the 1975 Cryogenic Engineering Conference are published as Volume 21 of the Advances in Cryogenic Engineering and include many papers indicating innovative use of new cryogenic materials properties data.

Inhalt
Structural AlloysFracture.- A1 A Research Program on the Properties of Structural Materials at 4 K.- A2 Fracture Mechanics and Its Application to Cryogenic Structures.- A3 The Fracture Toughness of Cryogenic Steels.- A4 Fatigue Crack Growth Rates of Structural Alloys at 4 K.- A5 Cryogenic Fracture Mechanics Properties of Several Manufacturing Process/Heat Treatment Combinations of Inconel X750.- A6 Microstructures of Inconel X750 for Cryogenic Structural Applications.- A7 The Fracture Toughness and Fatigue Crack Growth Rate of an Fe-Ni-Cr Superalloy at 298,76, and 4 K.- A8 Evaluation of Inconel X750 Weldments for Cryogenic Applications.- A9 Accident Simulation Tests on a Wet-Wall LNG Design.- A10 Plasticity and Fracture of Ductile Structural Alloys under Plane Stress at Low Temperatures.- A11 Crack Tip Strain Field of Strain-Hardening Materials at Low Temperature.- A12 Mechanical Property Measurement Techniques of Structural Materials at Cryogenic Temperatures.- Structural AlloysPhysical Properties.- B1 Magnetothermal Conductivity of Selected Pure Metals and Alloys.- B2 Thermal and Electrical Measurements on Selected Materials for Low-Temperature Applications.- B3 Thermal Conductivity of Selected Alloys at Low Temperatures.- B4 Low-Temperature Thermal Conductivity and Dislocation Structures in CopperAluminum Alloys under High-Cycle Low-Stress Fatigue.- B5 Measurement of Thermal Conductance.- B6 Magnetic and Thermal Properties of Stainless Steel and Inconel at Cryogenic Temperatures.- B7 Low-Temperature Elastic Properties of Invar.- B8 Embrittlement Mechanisms in a Hydrogen Environment.- Composites.- C1 Application of Fiber-Reinforced Polymers to Rotating Superconducting Machinery.- C2 StaticTensile Properties of BoronAluminum and BoronEpoxy Composites at Cryogenic Temperatures.- C3 Low Thermal Flux Glass-Fiber Tubing for Cryogenic Service.- C4 Optimization of Mechanical Supports for Large Superconductive Magnets.- InsulatorsThermal.- D1 Aging Characteristics of Polyurethane Foam Insulation.- D2 Cellular Glass Insulation for Load-Bearing Application in the Storage of Cryogenic Fluids.- D3 Thermal Conductivity of Microsphere Cryogenic Insulation.- D4 Apparent Thermal Conductivity of Uncoated Microsphere Cryogenic Insulation.- D5 Thermal Performance of Multilayer Insulation Applied to Small Cryogenic Tankage.- InsulatorsElectrical.- E1 Low-Temperature Properties of Resins and Their Correlations.- E2 Evaluation of Pre-Impregnated Resin-Glass Systems for Insulating Superconducting Magnets.- E3 Dielectric Design Considerations for a Flexible Superconducting Power Transmission Cable.- E4 Surface Flashover Voltage of Spacers in Vacuum at Cryogenic Temperatures.- E5 Dimensional Behavior of Thin-Film Dielectric Polymers in the Temperature Range 4.2 to 300 K.- Superconductors.- F1 Superconducting Materials for Large Scale Applications.- F2 Effect of Metallurgical Treatments on AC Losses of Nb3Sn Produced by Solid State Diffusion.- F3 Critical Current and AC Loss of Coevaporated Nb3Sn Superconductors.- F4 Nb3Sn for Superconducting RF Cavities.- F5 Chemical Vapor Deposition of Nb3Ge.- SuperconductorsMultifilamentary.- G1 Improvements in Critical Current Densities of Nb3Sn by Solid Solution Additions of Sn in Nb.- G2 Performance Data of a Multifilamentary Nb3Sn Conductor and Magnet.- G3 Test Results of a 27-Cm Bore Multifilamentary Nb3Sn Solenoid.- G4 Superconducting Wire Test at Fermilab.-G5 Superconducting Wires for a Pulsed Magnet.- G6 Survey Results of Multifilamentary NbTi Users.- G7 Single-Phase Helium as Coolant for Superconducting Magnets.- G8 Critical Rate of Magnetic Field Variation for Composite Superconductor.- G9 Stability of Composite Superconductors under AC Conditions.- Transient Losses in Superconductors.- H1 Technique for Measuring AC Losses in Thin-Film Superconductors.- H2 Field Orientation Dependence of Losses in Rectangular Multifilamentary Superconductors.- H3 Hysteresis Loss in a Multifilament Superconductor.- H4 Design of Helically-Wound Superconducting AC Power Transmission Cables.- H5 Interaction between Two Parallel Superconducting Wires Carrying Alternating Current.- Stress Effects in Conductor Materials.- I1 Effect of Stress on the Critical Current of NbTi Multifilamentary Composite Wire.- I2 Mechanical Properties of Superconducting Nb-Ti Composites.- I3 Low Temperature Tensile Behavior of Copper-Stabilized Niobium-Titanium Superconducting Wire.- I4 Electrical and Mechanical Properties of Dilute AluminumGold Alloys at 300,77, and 4.2 K.- I5 Effect of Cyclic Strain on Electrical Resistivity of Copper at 4.2 K.- I6 Low Temperature Resistance of Cyclically Strained Aluminum.- I7 Stress Analysis of Nonhomogeneous Superconducting Solenoids.- I8 Study of Cooldown Stresses in the Cryogenic Envelope of a Superconducting Cable.- Special Materials.- J1 Aboveground Concrete Secondary Containment for LNG.- J2 Thin Windows for Gaseous and Liquid Targets: An Optimization Procedure.- J3 A Promising New Cryogenic Seal Candidate.- Indexes.- Author Index.- Material Index.