66 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Mechanical Properties"  
Results: 1 - 24 next
open access

Single crystalline elastic constants of the MgCu/sub 2/-MgZn/sub 2/ system

Description: The adiabatic single crystalline elastic constants of six Mg(Cu, Zn)/sub 2/ cubic Laves phases have been determined by the ultrasonic pulse-echo technique over the compositional range 10 to 50 mol % MgZn/sub 2/ and over the temperature range 4.2 to 300/sup 0/K. In addition the elastic constants of the hexagonal MgZn/sub 2/ Laves phase were measured as a function of temperature. A minimum exists in the compositional dependence of the cubic Mg(Cu, Zn)/sub 2/ phase at 20 mol % MgZn/sub 2/ for all … more
Date: November 1968
Creator: Shannette, Gary Wayne
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Development of a process to lower the thermal expansion of hot pressed niobium--graphite composites

Description: Declassified 30 Aug 1973. Recent analysis of the NERVA hot end support system revealed that the high with-grain (WG) thermal expansion and the high creep deformation of NRX-A6 NERVA-type 75 wt% niobium carbide -- 25 wt% graphite hot pressed composite material may not be entirely satisfactory in future designs. Design requirements have shown the need for a better match between the normally high average coefficient of thermal expansion ( alpha ) of the composite material and the fueled graphite. … more
Date: August 1, 1968
Creator: Blay, J.S. & Ellenburg, G.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen