| B.V. Derjaguin, A.G. Lipson, V.A. Kluev, D.M. Sakov, Yu.P. Toporov (Institute of Physical Chemistry, USSR Academy of Sciences) | 1989 | Nature 341, 492; DOI 10.1038/341492a0, title "Titanium fracture yields neutrons?" (framed as a question by the authors) | Mechanical fracture experiments with neutron and charged-particle detection around the cracking specimen | Titanium (deuterated); the group's 1986 line began with heavy ice and lithium deuteride | Deuterated titanium specimens | Mechanical fracture (cracking of loaded specimens) | Room temperature, detectors surrounding the fracture zone | Reported neutron emission coincident with titanium fracture; the group's earlier 1986 companion reported neutron emission from fracture of heavy ice and lithium deuteride |
| V.A. Klyuev et al. | 1986 | Sov. Tech. Phys. Lett. 12, 1333 (venue and year only; no DOI confirmed; established via citation within the 1989 Nature paper) | Fracture experiments on deuterated solids with neutron detection | Heavy ice, lithium deuteride | Deuterated solids | Mechanical fracture | Room temperature | Reported neutron emission coincident with fracture of deuterated materials |
| A.G. Lipson and co-workers | 1990 | Journal article indexed in the IAEA INIS database under "Fracto-emission from deuterated titanium: Supporting evidence for a fracto-fusion mechanism" (record RBXE4-ER508, January 1990; full journal metadata not independently confirmed) | Fracto-emission measurements from deuterated titanium, recording charged-particle and photon emission from newly formed crack surfaces | Deuterated titanium | Deuterium-loaded titanium | Mechanical fracture | Vacuum | Reported fracto-emission (charged-particle and light emission) from deuterated titanium, presented as supporting the fracto-fusion mechanism; the record also documents that fracture of dielectrics is a known charged-particle and light source in its own right |
| A.G. Lipson, G.H. Miley (University of Illinois at Urbana-Champaign) | Year not independently confirmed | Review manuscript "Phenomenon of energetic charged particle emission from hydrogen/deuterium loaded metals", copy hosted at lenr-canr.org (venue and year not confirmed; author list confirmed from the manuscript) | Survey of charged-particle emission experiments across hydrogen- and deuterium-loaded metals including fracture and cavitation geometries | Various deuterated metals (Ti, Pd) | Gas and electrochemical loading | Mechanical and cavitation excitation | Various | Reports of energetic charged-particle emission from loaded metals, with CR-39 track-detector methodology prominent; carries the parameter lessons on detector placement and etching protocols |
| M. Fomitchev-Zamilov (Maximus Energy Corporation) | 2024 | Scientific Reports 14, 11517; DOI 10.1038/s41598-024-62055-6 (erratum: Scientific Reports 14, 16669, DOI 10.1038/s41598-024-67868-z) | 20 kHz piezoelectric sonifier-driven reactor (6 inch conflat tee, 550 W Branson driver) with deuterated titanium powder (electrochemically loaded from 500 mesh Ti, 0.05 M boric acid in D2O, 2.5 V, 80 h) suspended in degassed mineral oil; bank of He-3 proportional counters plus NaI(Tl) gamma detector; borax castle for background suppression | Deuterated titanium powder in mineral oil with D2O microemulsion | Ti/D electrochemically loaded; suspension of a few hundred milligrams Ti/D per run, plus about 1 mL D2O | 20 kHz acoustic drive at maximum power, 0.01 s on / 0.01 s off duty cycle; neutron flux present only when massive acoustic peaks of a few thousand psi registered from constructive interference of bubble shockwaves | Ambient pressure, degassed oil; stable suspension for at least 6 months | Reported neutron count rates exceeding 6500 CPM at peak (background below 0.5 CPM), stated as more than 10,000 times background; runs sustained up to 1.5 hours and repeated over 6 months; clean thermal neutron spectrum recorded; no excess from D2 bubbles or D2O droplets without Ti/D powder; the author states spallation and other neutron sources still need to be ruled out |
| A. Carpinteri, F. Cardone, G. Lacidogna (Politecnico di Torino) | 2009 | Strain 45, 332-339; DOI 10.1111/j.1475-1305.2008.00615.x | Mechanical compression tests to brittle fracture of rock specimens with neutron detection (He-3 and bubble detectors) | Granite and other brittle rock specimens | Natural (no deuterium loading) | Compression to brittle fracture | Laboratory compression frames | Reported neutron emission above background during brittle fracture of granite; the same group later reported associated chemical-change interpretations; a same-journal comment by U. Bardi and G. Comoretto (Strain 49, 544, 2013; DOI 10.1111/str.12036) addresses the geomechanical interpretation records |
