Ntxeem hlau ua npuas yog ib qho kev tshaj lij nrog cov qauv tshwj xeeb thiab cov khoom

Porous hlau ua npuas ncauj yog cov khoom siv siab heev nrog cov qauv tshwj xeeb thiab cov khoom. Nws sab hauv muaj ntau ntawm pores (qhib, kaw, lossis sib xyaw), muab nws qhov tseem ceeb hauv lub zog nqus thiab lub teeb ci ntsa iab.

I. Cov hauv paus ntsiab lus ntawm lub zog nqus thiab txo qhov hnyav

1. Cov qauv kev tsim qauv yog qhov tseem ceeb:

• Porosity: Porosity feem ntau yog li 50% mus rau tshaj 95%, lub ntsiab lus uas feem ntau ntawm cov khoom ntim ntim yog khoob.
• Tsis tshua muaj qhov ntom ntom: Qhov siab siab ua kom ncaj qha ua kom qis dua qhov uas ntawm cov hlau tuab tuab, feem ntau tsuas yog 5% ntawm cov matrix hlau lub ntom ntom ntom ntom. Qhov no yog qhov tseem ceeb vim li cas rau nws qhov hnyav txo qis.

2. Lub zog nqus nqus (Cushioning) mechanism:

• Elastic - deformation: Thaum hlau ua npuas dej, nws txoj kab sib xyaw (lossis cov npoo) khoov, txhuam, lossis plastically articulate.
• Kev sib tsoo ua tiav: thaum muaj kev cuam tshuam, deformation tsis tshwm sim tsis sib xws, tab sis theej plhuav pob los ntawm txheej, pib ntawm qhov chaw thau khoom. Tus qauv sib tsoo no yog tswj tau thiab ruaj khov. Ntev, tiaj tus kev nyuaj siab lub chaw: lub compressive kev ntxhov siab {2} Kev ntseeg nkhaus, thiab thawj thaj av uas yog qhov chaw puv uas yog qhov tseem ceeb tau tsoo). Lub xub ntiag ntawm no Plateau yog qhov tseem ceeb rau nws cov zog zoo nqus thiab lub zog ua kom lub zog:
• Absorbing Cov Zog Loj: Hauv toj siab, kev nyuaj siab tseem muaj kev ntxhov siab (me ntsis Thaum lub sijhawm cov txheej txheem no, cov khoom siv cov hmoov nplej tseem ceeb deformation zog (thaj chaw raws li kev ntxhov siab-strain nkhaus).
• Lim dej Peak Lock: kev ntxhov siab lim hiam siab tshaj plaws yuam kev yuam (ncov thauj khoom) kis mus rau cov khoom tiv thaiv, tiv thaiv nws.
• Kev muab lub ncoo ruaj khov: Qhov kev ntxhov siab txuas ntxiv hauv thaj av toj roob toj siab muab cov kev cuam tshuam ruaj khov rau lub zog Cushioning.

3. Kev ua tau zoo heev:

• High satter muaj zog / tshwj xeeb tawv: Txawm hais tias nws lub zog tsis muaj zog (modulus) thiab nruj me ntsis) thiab tawv ncauj) dua li ntau cov ntaub ntawv sib dhos, muab cov khoom siv sib npaug Siab lub zog nqus dej: lub zog nqus ib chav tsev loj yog ntau heev, qhov taw qhia tseem ceeb ntawm lub zog nqus hluav taws xob kev nqus tau zoo. Hlau ua npuas ncauj feem ntau muaj cov yam ntxwv zoo ntawm lub zog nqus cov yam ntxwv.

Ii. Cov ntsiab lus tseem ceeb (piv rau cov ntaub ntawv Cushioning Cushioning)

• Lub teeb loj heev: tsawg ceev cov txiaj ntsig tau nyob rau hauv qhov hnyav nyhav.
• Muaj Zog Zog Kev Ua Tau Zoo: Muaj Zog Zog Kev nqus ib chav tsev loj lossis ntim.
• Zoo load - nqa muaj peev xwm: lub zog muaj zog thiab tawv ncauj ntau dua li cov roj polymer, tso cai rau nws tiv thaiv cov nra ntau dua.
• Siab - qhov kub ua rau: cov hlau matrix imparts zoo heev (polymer foams feem ntau tsis tuaj yeem tiv taus ntau dua).
• Hluav taws rearardancy: ua hlau, ua npuas dej yog ib txwm tua hluav taws - tsis kam.
• Rov qab siv dua tshiab: cov ntaub ntawv hlau tau yooj yim siv tau.
• Ntau hom kev sib xyaw ua ke: cov qauv sib xyaw ua ke xws li kev nqus lub suab, thermal rwb thaiv tsev, hluav taws xob tiv thaiv, thiab cov kua dej permeability.
• Zoo puag ncig lub zog: huab cua tsis kam thiab corrosion tsis kam (nyob ntawm lub hauv paus hlau thiab txheej) yog zoo dua rau cov polymers.

III. Thov qhuas

Lub cushioning thiab hnyav {- Txo cov khoom siv hlau uas muaj kev nyab xeeb rau qhov hnyav, kev nyab xeeb, thiab kev ua haujlwm:

1. Tsheb thauj mus los:

• Automotive: Bumper lub zog nqus cov thawv, thiab chassis zog ci ntsa iab, roj teeb pob sib tsoo tiv thaiv cov khoom sib tsoo. Cov ntawv thov kev sib tsoo ua kom muaj kev nyab xeeb thaum txo lub tsheb phaus, txhim kho kev txuag hluav taws, thiab txhim kho ntau yam.
• Aerospace: Cov dav hlau tsaws iav zog {{}}}}}}}}} {1} {1} {1} {1}- Cov kab ke Qhov hnyav hnyav txo thiab muaj kev cia siab yog qhov tseem ceeb.
• Tsheb thauj mus los: Tsheb nqaj hlau tej lub zog -}- tsheb sib koom ua ke buffers.

2. Kev tsim kho thiab pej xeem engineering:

• Cov seismic puas tsuaj: siv nyob rau hauv lub zog -}}}}}}}}}}}} Lub zog ua lub zog thiab tiv thaiv tus qauv citect.
• Cov kev tiv thaiv cuam tshuam: Siv rau phab ntsa thiab tiv thaiv cov chaw tseem ceeb (xws li cov nroj tsuag hluav taws xob thiab cov nroj tsuag tshuaj) los tiv thaiv kev tiv thaiv tawm tsam thiab khib nyiab.

3. Neeg kho tshuab Engineering thiab Kev Nyab Xeeb Kev Nyab Xeeb:

• Tshuab Tool thiab Khoom Siv Tiv Thaiv: anti {{{kev tiv thaiv cov tshuab gunting rau cov tshuab hnyav thiab lub zog}}
• Ntim thiab Tsheb Thauj Mus Los: High-}}}} Kawg tiv khoom, tsis muaj cov khoom muaj txiaj ntsig, thiab cov khoom muaj nqis.
• Cov Khoom Siv Tiv Thaiv Tus Kheej: High - Cov kaus mom hlau thiab lub zog sib tw rau cov neeg tub rog thiab kev sib tw - ntawv pov thawj backplates.

4. Biomedical Engineering:

• Orthopedic kev cog lus: titanium alloy lossis tantalum alloy ua npuas ncauj yog siv los ua cov pob txha dag lossis cov txheej txheej cog hniav. Lawv cov qauv hluav taws xob yooj yim ua rau pob txha sib xyaw ua ke (OSIPLUS Modulus tuaj yeem yog qhov ze ntawm tib neeg cov pob txha, txo kev ntxhov siab rau kev tiv thaiv thaum ua tau kev ua tau zoo me me.
• Cov cuab yeej kho mob: Poob siab {{{|}}}}} ay nqus cov leeg thiab kev tiv thaiv feem rau sab hauv ntawm cov khoom siv precision.

5. Zog thiab ib puag ncig:

• Cov roj teeb / roj hlwb: siv ua cov qauv kev txhawb nqa lossis electrode substrates (tshwj xeeb yog qhib {{0} {{0} {{0} {{0} {{0} {{0} {{0} {{0} {{0} {{
• Kev lag luam nuclear: Neutron tso tseg (xws li boron -} muaj cov npuas ncauj) thiab kev cuam tshuam}} {tsis tiv thaiv cov qauv.

6. Kev tiv thaiv thiab kev ua tub rog kev lag luam:

• Armored Vehicles: Energy-absorbing interlayers in lightweight composite armor protect against blasts and shrapnel.
• Nkoj: Underwater cuam tshuam -} Cov qauv teeb meem tiv thaiv tiv thaiv Torpedo thiab kuv cov blasts.
• Cov khoom siv ib tus neeg: Cov tsho khuam tua thiab tiv thaiv kev tiv thaiv, raws li tau hais los saum toj no.

Lub ntsiab
Porous hlau ua npuas ncauj, nrog nws cov qauv sib txawv, ua tiav nws cov haujlwm tseem ceeb) thiab ua kom muaj zog txo lub zog (Cushioning) los ntawm kev tswj cov khoom tawg yooj yim. Nws cov kev ua tau zoo heev, siab - kub ua rau nws muaj kev tiv thaiv kev ua tub sab, kev tiv thaiv kev ua tub rog, thiab biomedicine. Nrog cov kev nce qib hauv kev npaj thev naus laus zis, txhim kho cov kev siv hluav taws xob, thiab cov khoom siv hluav taws xob sib xws, thiab cov khoom siv hluav taws xob zoo ib yam, thiab cov khoom siv hluav taws xob zoo dua thiab cov qauv sib luag.