Materials science in science fiction

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Material science in science fiction is the study of how materials science is portrayed in works of science fiction. The accuracy of the materials science portrayed spans a wide range - sometimes it is an extrapolation of existing technology, sometimes it is a physically realistic portrayal of a far-out technology, and sometimes it is simply a plot device that looks scientific, but has no basis in science. Examples are:

Realistic case: In 1944, the science fiction story Deadline^[1] by Cleve Cartmill depicted the atomic bomb.^[2] The properties of various radioactive isotopes are critical to the proposed device, and the plot. This technology was real, unknown to the author.
Extrapolation: Arthur C. Clarke wrote about space elevators, basically a long cable extending from the Earth's surface to geosynchronous orbit. This requires a material with enormous tensile strength and light weight. Carbon nanotubes are strong enough in theory, so the idea is plausible; while we cannot build one today, it violates no physical principles.
Plot device: A example of an unsupported plot device is scrith, the material used to construct Ringworld, in the novels by Larry Niven. Scrith possesses unreasonable strength, and is unsupported by physics as we know it, but needed for the plot.

Critical analysis of materials science in science fiction falls into the same general categories. The predictive aspects are emphasised, for example, in the motto of the Georgia Tech's department of materials science and engineering - Materials scientists lead the way in turning yesterday's science fiction into tomorrow's reality. This is also the theme of many technical articles, such as Material By Design: Future Science or Science Fiction?^[3], found in IEEE Spectrum, the flagship magazine of Institute of Electrical and Electronics Engineers.

On the other hand, there is criticism of the unrealistic materials science used in science fiction. In the professional material science journal JOM, for example, there are articles such as The (Mostly Improbable) Materials Science and Engineering of the Star Wars Universe^[4] and Personification: The Materials Science and Engineering of Humanoid Robots^[5].

[edit] Examples

In many cases, the material science aspect of a fictional work was interesting enough that someone other than the author has remarked on it. Here are some of these examples, and their relationship to the real world material science usage, if any.

Name	Source	Uses	Related real use
Aluminium	Star Trek	In the film Star Trek IV: The Voyage Home, Scotty gave the instruction to make the fictional material transparent aluminium.	Sapphire is an aluminium oxide (Al₂O₃), is transparent, and used as window material in some scientific applications. In real life, scientists have announced a plastic as strong as steel, but transparent.
Beryllium	Galaxy Quest, The Shadow	The starship NSEA Protector is powered by large spheres of beryllium. Also, beryllium is needed for the creation of a bomb and found by investigating the metal components of a supposed "beryllium coin" in The Shadow (1994). Critics have noted this similarity.^[6]	Beryllium's use in these fictional applications may arise from its actual use in some types of nuclear bombs.
Calcium carbonate	Stargate SG-1	When made in suitable rocks such as calcium carbonate oxygen is produced as a by-product during the formation of Crystal tunnels by the Tokra allowing time to set up life support.	There is serious thought of extracting oxygen from moon rocks for life support and propulsion. NASA has sponsored a prize (MoonROx) for the first working prototype.
Dilithium	Star Trek	Dilithium is fictionally used as shorthand for an extremely complex and hard crystalline structure (2(5)6 dilithlum 2(:)l diallosilicate 1:9:1 heptoferranide), which occurs naturally on some planets. When placed in a high-frequency electromagnetic field, magnetic eddys are induced in its structure which keep charged particles away from the crystal lattice. This prevents it from reacting with antimatter when so energized, because the antimatter atoms never actually touch it. Therefore, it is used to contain and regulate the annihilation reaction of matter and antimatter in a starship's warp core, which otherwise would explode from the uncontrolled annihilation reation. Though low-quality artificial crystals can be grown or replicated, they are limited in the power of the reaction they can regulate without fragmenting, and are therefore largely unsuitable for warp drive applications. Due to the need for natural dilithium crystals for interstellar travel, deposits of this material are a highly contested resource, and as such dilithium crystals have led to more interstellar conflict than all other reasons combined.	In reality dilithium describes a biatomic gas.
Duralumin	Various	The Marvel Comics character Captain America wears a suit of light weight duralumin mail beneath his costume for added protection. A duralumin briefcase was featured in the game Resident Evil: Code Veronica. The name of the fictitious alloy duranium used in the Star Trek universe is basically a take-off of duralumin.	Duralumin is a rather old aluminum alloy with un-exceptional properties compared to other metals, and even other alloys of aluminum. Titanium, for example, is much stronger and about the same weight.
Einsteinium	The Tashkent Crisis	In William Craig's Cold War novel, einsteinium-119 is used to build a nuclear warhead into the casing of a Colt .45 pistol.	This element possesses isotopes with very low critical masses. Values as low as 32 grams have been reported in the literature.^[7]
Carbon, as Fullerenes and Carbon nanotubes	The Fountains of Paradise, many others	See fullerenes in popular culture	In real life, fullerines and nanotubes have rather exceptional mechanical, electrical, and thermal properties. See, for example Potential applications of carbon nanotubes.
Hard water	The Flash comics	Electrically charged hard water was the item that gave the first Flash (Jay Garrick) his superspeed. However, critics^[8] and even the authors realized this was unlikely, and has origin was retconned into heavy water.	Heavy water, or water made with deuterium, has some high tech uses, including use a moderator in nuclear reactors. Hard water, on the other hand, is just water with lots of dissolved minerals.
Hydrogen-4	Leonard Wibberley's The Mouse That Roared	This isotope of hydrogen is referred to as Quadium^[9] and powers a thermonuclear doomsday device called the Q-bomb, which is captured by the Duchy of Grand Fenwick.	The other isotopes of hydrogen, deuterium and tritium, are really used in hydrogen bombs.
Lead	DC Universe	Superman's X-Ray vision is unable to penetrate lead. Additionally, kryptonite radiation can be blocked by this material. Daxamites are highly susceptible to lead poisoning.	X-rays are indeed strongly attenuated, though not completely blocked, by lead. Lead poisoning is a very real effect.
Lysine	Jurassic Park	In the film Jurassic Park, the dinosaurs have their DNA modified so that they cannot produce lysine and must be supplied with it by the park's feeding system, otherwise they will eventually die. This is a security measure to prevent the creatures from spreading if they ever escaped into the outside world. In the book, the dinosaurs escape and survive by eating things rich in lysine such as soybeans and lentils. Critics have noted this obvious flaw^[10]	Real life biological experiments use this mechanism.
Neutronium	Many, see this list, for example.	An extremely dense material made entirely of neutrons, it is theorized to be the main constituent of neutron stars, held together by its own gravity. Authors build space ships out of it and attribute to it various desirable qualities as armor, structural material, etc. It may be that they are referring to the iron on the surface of these stars, which polymerises under the intense magnetic field to become 10000 times as dense as earth iron and a million times as strong as earth steel^{[citation needed]} and which might be incorporated into a composite material in the same way as nanotubes.	Neutronium is actually expected to decompose messily at any reasonable pressure,
Perfluoropropyl furan (oxygenated perfluorocarbon for Liquid breathing)	The Abyss	A mysterious (unnamed?) breathable liquid is used as the oxygen-carrying atmosphere in a deep-sea diving suit. A real lab rat is "drowned" in a beaker of the liquid, but overcoming initial panic, swims around quite happily. Critics have note this as an example of an implausible science fiction effect that is really possible^[11].	Although applications for humans are limited to artificial respiration systems(i.e. LiquiVent), mice have survived prolonged submersions in liquid fluorocarbons in which the solubility of oxygen is very high. When the animal is returned to dry land, the liquid vaporizes from its lungs and it can again breathe air.
Polonium	various	In Sold to Satan by Mark Twain, Satan's body of radium is cloaked in a protective skin of polonium^[12].	Polonium makes a very poor protective coating - at just above room temperature, it evaporates into air in a short time.
Rhodium	Jack Williamson's The Humanoids	Rhodium and metals next to it in the periodic table can be used to harness a force similar to electromagnetism, known as "rhodomagnetism". Rhodomagnetism is also mentioned in passing in Fredric Brown's What Mad Universe. However, this has been derided by critics as pure gobbledygook^[13].
Selenium	Ghostbusters,Evolution (film), I, robot	In the film Ghostbusters, the site of the climactic final battle against Gozer takes place on the Ivo Shandor building which earlier in the film is stated as being “cold-riveted girders, with cores of pure selenium,” the building itself is used as an antenna to draw surrounding psychokinetic energy in order to bring Gozer into our world. The protagonists of the film Evolution use hundreds of gallons of Head and Shoulders brand shampoo (which they say contains Selenium) to defeat the titular alien menace. Critics have noted the method of picking selenium as a poison is less than scientific.^[14] In the book I, Robot, in the story called Runaround, Selenium is used on Mercury (planet) to either generate power, or to protect Gregory Powell and Michael Donnovan from the heat of the Mercurian sun.	Selenium is used with bismuth in brasses to replace more toxic lead. There is no reported use in girders. Head & Shoulders shampoo actually uses a zinc-based active ingredient. Selsun Blue, another dandruff shampoo, does contain selenium sulfide.
Strontium	The Bionic Woman	Jamie Summers battles a computerized complex bent on destruction. Although it does not contain a real bomb, it is to be destroyed by a military Strontium Bomb.	A dirty bomb containing Strontium-90 is a potential terrorist weapon.
Thallium	Protector and other works set in Known Space, by Larry Niven, City of Heroes and City of Villains	In these works, humans are derived from another race, in which human-like beings are the juvenile form of a smarter and tougher adult, the Pak Protector. The transformation between the forms is triggered by a virus. These beings establish an Earth colony, but the virus requires significant amounts of thallium oxide in the environment. Since the Earth does not have enough Thallium, the virus dies out, and humans then evolved from the juvenile form. Critics have noted this cannot explain the similarity of DNA in humans and much older life forms on Earth^[15].	Niven's use is plausible but fictional. The same effect occurs in vitamin deficiency.
Thorium	Robert A. Heinlein's novels, Star Wars	Robert A. Heinlein envisioned thorium as being the principal fuel of the advanced space-travelling civilizations described in his novels Have Space Suit—Will Travel and Citizen of the Galaxy. This use is also seen in the Master of Orion series of video games. Thorium is also used as a high explosive in the game Star Wars: Knights of the Old Republic II. In Stanley's Kubrick "Dr. Strangelove", a strange and very destructive weapon is said to use "Cobaltum Thorium G".	Thorium can be used in nuclear reactors, and is much more abundant than uranium. This technology has been tested at a fairly large scale in reactors such as the THTR-300.
Tin foil	Various conspiracy theorists, Signs	Supposedly, one can protect oneself against mind-control rays (government, alien, corporation, etc) by wearing a tin-foil hat. In the movie Up, Up and Away, tin foil acts as kryptonite for the superheroes.	It is important to note that tin foil, even in Signs, has no evidence of actually working.
Ununpentium	Urban myths, UFO conspiracy theory culture, Dark Reign, The Core, X-COM series	Ununpentium has been theorized to be inside the island of stability. This probably explains why it had all sorts of lore around it before it was actually synthesized. In the world of UFO conspiracy theory culture during the 1980s and 1990s, Bob Lazar asserted that ununpentium functioned as "fuel" for UFOs, being "stepped up" to ununhexium under "particulate bombardment," and that the ununhexium's decay products would include antimatter. In the X-COM series, in reference to this kind of UFO theory, ununpentium is known as elerium-115 or just elerium (the name "elerium-115" being an error as in this form the number refers to the atomic mass instead of the atomic number, meaning that elerium would have no neutrons, which is not possible). It is used by the aliens to power their weapons and fly their UFOs on the game series. It can't be found naturally on Earth and it generates anti-matter when bombarded with certain particles, while also releasing gravity waves and other types of energy. A stable isotope of ununpentium occurs in the game Dark Reign. A stable isotope of "Element 115" powered the time machine in the TV Show Seven Days.	There is lots of speculation about stable elements in the Island of stability.
Zinc	Protector (novel) and other works set in Known Space, by Larry Niven	Crystal zinc is the material from which fusion drive tubes are made. It's not explained what property of zinc is utilized, or why zinc is the best material for this application.^[16]	There are some nuclear interactions that only happen in crystalline materials. For example, the Mössbauer effect, affecting gamma ray absorption and emission, has been observed in zinc crystals^[17].