Journal of Nuclear Materials 367–370, pp.954–959. The official laboratory abstract describes pressurized-tube measurements separating irradiation creep, void swelling, precipitation and plastic strain. The source's full title continues “Irradiated as Pressurized Tubes in the EBR-II Fast Reactor”.

The inspected official PDF identifies itself as a book for Engineering Tripos materials courses. Printed p.6 gives fracture-mechanics formulas. It has not been established as the Data Book supplied for the2018NSTMaterials examination, so its generic material ranges must not be presented as exact historical exam values.

Primary in-situ synchrotron diffraction measurements during stress-jump creep tests of a rafted AM1 single crystal; Materials 11, 1527. doi.org/10.3390/ma11091527

Manufacturer manual. Sections 3.5 and 7.1 describe the coupled crystal/detector geometry; section 4.6 gives the copper characteristic wavelengths. community.wvu.edu/~miholcomb/New%2C%20TEL-X-Ometer_Manual_V1.0.1.pdf

Primary measurements of dielectric response, spontaneous polarization and optical properties of melt-grown single-domain crystals; Journal of Physics and Chemistry of Solids 29, 1797–1803. doi.org/10.1016/0022-3697(68)90164-9

Cambridge institutional account with a transmission-electron micrograph supplied by Yanhui Zhang, showing paired dislocation loops after creep testing. It explains order restoration by two matrix dislocations. brearley.msm.cam.ac.uk/2002/Zhang.html

Primary casting experiments comparing selector geometry, with optical microscopy and electron-backscatter diffraction used to track surviving crystal grain orientations; Materials 12, 789. doi.org/10.3390/ma12050789

Author-maintained online text: solidmechanics.org . Section3.12 discusses single-crystal plasticity, tensile-axis rotation and the relationship between secondary slip and hardening: solidmechanics.org/Text/Chapter3_12/Chapter3_12.htm

Second edition, volume1, 1963. The magnesium parameters reproduced in Crystallography Open Database entry9008506 are $a=0.320927\mathrm{nm}$ and $c=0.521033\mathrm{nm}$: www.crystallography.net/cod/9008506.html . These independently documented values do not identify which data-book edition accompanied an examination.

Original 1972 thesis, University of Missouri-Rolla. Its abstract reports a pure-nickel lattice parameter of $0.352389\mathrm{nm}$ at $25^{\circ }\mathrm{C}$, from X-ray measurements: scholarsmine.mst.edu/masters_theses/5049/ .

A combination of material properties to maximize or minimize after eliminating free geometric variables from an engineering objective and constraints. Changing a geometric constraint can change the index: strength-limited rectangular cantilevers give ${\sigma }_f/\rho$ with fixed height, but $\sqrt{{\sigma }_f}/\rho$ with fixed width.

A plot comparing material property ranges, often on logarithmic axes. Constant material performance index values appear as straight guidelines when the index is a product of powers of the plotted properties. A family region is a screening aid, not a certified property value for every grade or loading direction.

For data $d=aT+n$, known complex source template $T$, real amplitude $a$, and known noise covariance $C$, generalized least squares gives the displayed amplitude. This convention takes $C$ in the quadratic objective $(d-aT{)}^{†}{C}^{-1}(d-aT)$; factors of two in the amplitude variance depend on whether complex-component or real-component covariance is used. Source position, shape and contaminants must be fitted or marginalized when uncertain. An extended-source complex visibility template accounts for resolved-out flux rather than assuming the source is unresolved.