The mechanical and strength properties of diamond
Level 5 - mechanism / opinion, no new human data
Narrative review of materials science and physics literature (by design analogy, not clinical CEBM)
OpenAlex W1987044561 · doi:10.1088/0034-4885/75/12/126505
What was done
This narrative review summarizes the mechanical, strength, and structural properties of natural and synthetic diamond, as well as production methods such as high-temperature high-pressure (HPHT) synthesis and chemical vapor deposition (CVD).
What was found
The abstract reports that gem-quality synthetic diamonds larger than 1 carat (0.2 g) can be grown using HPHT techniques. Commercially available industrial diamonds reach approximately 0.01 carat (~1 mm linear dimension), while the bulk of industrial synthetic diamonds are 600 µm or smaller. Synthetic material accounts for over 75% of all diamond used industrially. Recent advances highlighted include diamond-based composites that offer substantially improved toughness while preserving high hardness and thermal conductivity, and metastable low-pressure growth via CVD.
Why it matters
Understanding the structural rigidity and synthesis techniques of diamond enables tailored fabrication of ultra-hard materials, high-conductivity substrates, and tough composites for industrial and solid-state research applications.
Limits
The abstract describes a broad narrative overview rather than a systematic review or primary empirical study. Quantitative mechanical performance metrics (such as exact fracture toughness, yield strength, or elastic modulus values) are not reported in the abstract.
Cited by
- supports Synthetic lab-grown diamonds and mined diamonds are physically identical carbon matrices.