Fragments broken off a larger solid body of material
For other uses, see Spall (disambiguation).
Very high-speed photography of a small projectile striking a thin aluminium plate at 7,000 m/s. The impact causes the projectile to disintegrate, and generates a large number of small fragments from the aluminium (spallation). This can occur without penetration of the plate.
Spall are fragments of a material that are broken off a larger solid body. It can be produced by a variety of mechanisms, including as a result of projectile impact, corrosion, weathering, cavitation, or excessive rolling pressure (as in a ball bearing). Spalling and spallation both describe the process of surface failure in which spall is shed.
Spall from knapping obsidian arrowheads and other tools. These unique obsidians are found at Glass Buttes, Oregon.
The terms spall, spalling, and spallation have been adopted by particle physicists; in neutron scattering instruments, neutrons are generated by bombarding a uranium (or other) target with a stream of atoms. The neutrons that are ejected from the target are known as "spall".
ball bearing). Spalling and spallation both describe the process of surface failure in which spall is shed. The terms spall, spalling, and spallation...
Timothy Leonard Spall OBE (born 27 February 1957) is an English actor and presenter. Spall gained recognition for his character actor roles on stage and...
Rafe Joseph Spall (/ˈreɪf ˈspɔːl/ RAYF SPAWL; born 10 March 1983) is an English actor. Spall has appeared in films including Kidulthood (2006), A Good...
English actor Timothy Spall OBE (born 27 February 1957) has made over 100 appearances in film and television. Having made his cinematic debut in the 1979...
ex-girlfriend of Matt Carter. In 2008, du Toit started dating actor Rafe Spall after the two met in a bar through mutual friends. The couple got married...
Robert Spall VC (5 March 1890 – 13 August 1918), was a Canadian recipient of the Victoria Cross, the highest and most prestigious award for gallantry...
Gemma Jones, Malachi Kirby, Lolly Adefope, Eileen Atkins, and Timothy Spall. Based on a true scandal, it follows an investigation into the anonymous...
War, many AFVs have spall liners inside of the armour, designed to protect crew and equipment inside from fragmentation (spalling) released from the impact...
Charlotte Gainsbourg, Toby Jones, Harry Lawtey, Simon McBurney, Timothy Spall, and Robert Duvall. Its plot follows veteran detective Augustus Landor in...
Lyon Playfair, an experienced but sceptical investigator, while Timothy Spall played Maurice Grosse, an amateur paranormal researcher. BAFTA-nominated...
directed by Stephen Poliakoff and stars Keeley Hawes, Linus Roache, Timothy Spall and Toby Stephens. It is a semi-autobiographical story based on Poliakoff's...
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